• WordNet 3.6
    • adj fatuous devoid of intelligence
    • ***
Webster's Revised Unabridged Dictionary
    • Fatuous Feeble in mind; weak; silly; stupid; foolish; fatuitous.
    • Fatuous Without reality; illusory, like the ignis fatuus. "Thence fatuous fires and meteors take their birth."
    • ***
Century Dictionary and Cyclopedia
    • fatuous Foolish; foolishly conceited; feebly or stupidly self-sufficient; unconsciously silly: applied both to persons and to their acts.
    • fatuous Idiotic; demented; imbecile.
    • fatuous Unreal; illusory, like the ignis fatuus.
    • ***
Chambers's Twentieth Century Dictionary
    • adj Fatuous fat′ū-us silly: imbecile: without reality—also Fatū′itous
    • ***


Webster's Revised Unabridged Dictionary
L. fatuus,
Chambers's Twentieth Century Dictionary
L. fatuus.


In literature:

He compared her in his mind to Catherine Bailey, and could not but feel that in his youth he had been blind and fatuous.
"An Old Man's Love" by Anthony Trollope
Wally and Max tried not to notice, but Miss Watts's face was wreathed in a fatuous smile of satisfaction.
"The Cricket" by Marjorie Cooke
He had chosen it fatuously.
"Stubble" by George Looms
And Mrs. Handsomebody beamed fatuously at him!
"Explorers of the Dawn" by Mazo de la Roche
How fatuous, and then again how profound, his conversation could be!
"The Goose Man" by Jacob Wassermann
SKIPPY, fatuously unconscious of any overtaking fate, escorted Dolly to the next Saturday night hop.
"Skippy Bedelle" by Owen Johnson
Charlie was fatuous, but he was young, and she wanted, yes, yes!
"The Job" by Sinclair Lewis
The young man was smiling fatuously.
"Black Oxen" by Gertrude Franklin Horn Atherton
And she had often said fatuously that she loved baseball, because she understood it.
"Eve to the Rescue" by Ethel Hueston
Herman seemed fatuously delighted by Millar, and she could not bring herself to talk to him now.
"The Devil" by Joseph O'Brien

In poetry:

of the tiredness, the fatuousness, the semi-
lust of intentional indifference.
Be wet
with a decent happiness.
"The Rain" by Robert Creeley
O Death! O Change! O Time!
Without you, O, the insuperable eyes
Of these poor Might-Have-Beens,
These fatuous, ineffectual Yesterdays!
"Under A Stagnant Sky" by William Ernest Henley
Yes, men still try it, for no other reason
Than that man ever would and ever will
Strive fatuously, in and out of season,
To paint perfection's cheek more perfect still.
"Futility" by C J Dennis
But he grew rabid-wroth, he did,
If they neglected books,
And dragged them to adjacent Cliffs
With beastly Button Hooks,
And there with fatuous glee he threw
Them down into the ocean blue.
"He Lived at Dingle Bank" by Edward Lear
I pernoctated with the Oxford students once,
And in the quadrangles, in the cloisters, on the Cher,
Precociously knocked at antique doors ajar,
Fatuously touched the hems of the Hierophants,
Sick of my dissonance;
"An American Addresses Philomela" by John Crowe Ransom

In news:

Fatuous -Gossip Watch 2012: The Obama Campaign in Disarray.
Using the Marxist label is as fatuous as bringing Hitler into any political discussion.
Of all the complaints leveled at Apple following its iPad launch event this week, the most persistent — and most fatuous — is that the company somehow betrayed owners of its existing products by releasing new ones.
' Salome ': Doris Soffel's Herodias is a fine foil to Richard Berkeley-Steele's fatuous Herod.
The so-called Occupy Wall Street movement is drawing some support from beyond the standard assemblage of superannuated hippies , dopey college kids and fatuous liberal journalists.
He knew what he'd done was a fatuous disgrace, no longer he would belong.

In science:

More significantly there are higher order in α contributions which cannot be ignored; it is therefore fatuous to suppose that one can simply set the coefficient of 6 p in the spinor propagator equal to one in the Landau gauge—this is simply incorrect in higher orders.
A critique of the gauge technique