• "The other passengers thought him mad."
    "The other passengers thought him mad."
  • WordNet 3.6
    • adj thoughtful considerate of the feelings or well-being of others
    • adj thoughtful taking heed; giving close and thoughtful attention "heedful of the warnings","so heedful a writer","heedful of what they were doing"
    • adj thoughtful having intellectual depth "a deeply thoughtful essay"
    • adj thoughtful acting with or showing thought and good sense "a sensible young man"
    • adj thoughtful exhibiting or characterized by careful thought "a thoughtful paper"
    • ***

Additional illustrations & photos:

Two girls looking thoughtful; one of them is sitting on a clothes trunk Two girls looking thoughtful; one of them is sitting on a clothes trunk
Serenely Wandering in a Trance of Sober Thought Serenely Wandering in a Trance of Sober Thought
The prince looks thoughtfully at the silent Dorani The prince looks thoughtfully at the silent Dorani
Turning the ring thoughtfully upon his finger Turning the ring thoughtfully upon his finger
He told them what he thought their dreams must mean He told them what he thought their dreams must mean

Webster's Revised Unabridged Dictionary
  • Interesting fact: Pilgrims did not eat potatoes for Thanksgiving as they thought they were poisonous
    • Thoughtful Anxious; solicitous; concerned. "Around her crowd distrust, and doubt, and fear,
      And thoughtful foresight, and tormenting care."
    • Thoughtful Attentive; careful; exercising the judgment; having the mind directed to an object; as, thoughtful of gain; thoughtful in seeking truth.
    • Thoughtful Full of thought; employed in meditation; contemplative; as, a man of thoughtful mind. "War, horrid war, your thoughtful walks invades."
    • ***
Century Dictionary and Cyclopedia
  • Interesting fact: An African American chef in Albany, NY is thought to have been the inventor of potato chips sometime in 1865. Unfortunately, nobody knows his name.
    • thoughtful Occupied with thought; engaged in or disposed to reflection; contemplative; meditative.
    • thoughtful Characterized by or manifesting thought; pertaining to thought; concerned with or dedicated to thought.
    • thoughtful Mindful, as to something specified; heedful; careful: followed by of or an infinitive.
    • thoughtful Showing regard or consideration for others; benevolent; considerate; kindly.
    • thoughtful Full of care; anxious; troubled.
    • thoughtful Synonyms Reflective, pensive, studious.
    • thoughtful Considerate, regardful.
    • ***
Chambers's Twentieth Century Dictionary
  • Interesting fact: As late as 1820, the universe was thought to be 6,000 years old. It is now thought to be between 15 and 20 billion years old.
    • Thoughtful full of thought: employed in meditation: attentive: considerate: promoting serious thought: favourable to meditation
    • ***


  • Ralph Waldo Emerson
    “The ancestor of every action is thought.”
  • William Shakespeare
    “Be great in act, as you have been in thought.”
  • St. Francis De Sales
    “There was never an angry man that thought his anger unjust.”
  • Huang Po
    Huang Po
    “When thoughts arise, then do all things arise. When thoughts vanish, then do all things vanish.”
  • Susan Taylor
    Susan Taylor
    “Thoughts have power; thoughts are energy. And you can make your world or break it by your own thinking.”
  • Ralph Waldo Trine
    Ralph Waldo Trine
    “Thoughts are forces.”


A penny for your thoughts - This idiom is used as a way of asking someone what they are thinking about.
Food for thought - If something is food for thought, it is worth thinking about or considering seriously.
Perish the thought - Perish the thought is an expression meaning that you really hope something will not happen.
Second thoughts - If some has second thoughts, they start to think that an idea, etc, is not as good as it sounded at first and are starting to have doubts.
Train of thought - A train of thought is a sequence of thoughts, especially when you are talking to someone and you forget what you were going to say.


Chambers's Twentieth Century Dictionary
A.S. ge-thóht; Ice. thóttr, Ger. bedacht. Cf. Think.


In literature:

I did not tell him what had happened, for I thought it would make him even, more sad than he was.
"In the Eastern Seas" by W.H.G. Kingston
I thought Charley the finest fellow I had ever known, and I promised to be guided by him entirely.
"Will Weatherhelm" by W.H.G. Kingston
She and Hadria had thought out the question from all sides.
"The Daughters of Danaus" by Mona Caird
Miss Lucy never undertook to explain why she had not married, but her brothers thought they knew.
"The Long Roll" by Mary Johnston
If I made her agreeable answers, though more from chance than from judgment, she thought herself well paid for all her labor.
"The Autobiography of Madame Guyon" by Jeanne Marie Bouvier de La Motte Guyon
This was not alluded to, however, though each thought his own thoughts about it, in the midst of their talk.
"Janet's Love and Service" by Margaret M Robertson
I gave no thought to seeing him again.
"Chance" by Joseph Conrad
Had she not thought and thought over this very thing?
"The Heart of Unaga" by Ridgwell Cullum
Joe thought she should.
"A Little Girl in Old New York" by Amanda Millie Douglas
Between his thoughts, desires, intentions, and hers, a blind blank space had suddenly intruded itself, impenetrable to her thought.
"The History of Sir Richard Calmady" by Lucas Malet

In poetry:

I have lain in the sun
I have toil'd as I might,
I have thought as I would,
And now it is night.
"Nimium Fortunatus (The Good Life)" by Robert Seymour Bridges
There's not a trace of cloud
Now-and she
Is in my thoughts;
The moon and my heart
Seem to waver.
"There's not a trace of cloud" by Saigyo
My face is my own, I thought.
But you have seen it
turn into a thousand years.
I watched you cry.
"A Form Of Women" by Robert Creeley
The old empty dreams
Where my thoughts would throng
Are far too full of happiness
To even hold a song.
"Houses Of Dreams" by Sara Teasdale
The flowers came and went,
And came and left once more;
But when they came again,
Alma thought she'd go.
"Excelsior. Rev. 21:11. 19:1" by Frank Barbour Coffin
They made a curious Eden.
We saw that it was good.
We thought with them in unison.
We proudly understood
"Our Guardian Angels And Their Children" by Vachel Lindsay

In news:

Midsummer used to be the time when you thought the whole game was over for your corn and soybeans.
Some thoughts from pot-smoking skaters.
He caught a glimpse of the groundhog last year in the fence row, but wasn't sure if he saw what he thought he saw.
As someone with a love for the written word, when I think of The Algonquin Hotel in Manhattan, my first thought immediately turns to the fabled Algonquin Roundtable.
Of course, for a long while, scotch was thought to be enjoyed by only old dudes.
She doesn't like to bring undue attention to herself, so we thought we'd do it for her.
I talked about this earlier this week but I thought it was worth posting more about it here.
I saw that headline, and thought, "this will be one of the coolest things I have ever seen.".
Thoughts on religion and politics, energy and athletics.
Did your amaryllis not bloom as soon as you thought it would.
You thought the ATM next to the checkout was convenient.
"For my thoughts are not your thoughts, neither are your ways my ways.".
I thought he was a great lineman and I thought he deserved the chance to make a team.
Seth Morrison stomps the big questions - thoughts on a thought-provoking film.
Soylent Green This week we have thought nothing but green thoughts.

In science:

Then R may be thought of as the algebra of regular functions on Πg × Πg.
On the Cachazo-Douglas-Seiberg-Witten conjecture for simple Lie algebras
Y T is the set of functions from T to Y . Y can be thought of as the set of possible “truth-values” or “properties” of elements of T .
A Universal Approach to Self-Referential Paradoxes, Incompleteness and Fixed Points
In this paper we have addressed the question of whether high mass DM halos (that are thought to host the clusters of galaxies) do define the FP and the other scaling relations observed for nearby clusters.
The scaling relations of galaxy clusters and their dark matter halos
Andreon & Ettori (1999) take this thought process further.
At the Vigintennial of the Butcher-Oemler Effect
For the torus Td , Haar measure may be thought of as the uniform distribution on the “flat” cube [0, 1)d , since addition corresponds to translation on Rd/Zd .
Random walks on the torus with several generators