nEnantiosis(Rhet) A figure of speech by which what is to be understood affirmatively is stated negatively, and the contrary; affirmation by contraries.
Century Dictionary and Cyclopedia
nenantiosisIn rhetoric, a figure of speech consisting in expression of an idea by negation of its contrary, or by use of a word of opposite meaning. The term antiphrasis was originally used as equivalent to enantiosis in both forms, but is now usually limited to signify enantiosis by use of a word of opposite meaning. Enantiosis by negation of the contrary, as, “he is no fool” for “he is wise,” is generally called litotes. Enantiosis or antiphrasis in such instances as the “Eumenides” (that is, “the gracious ones”) for the “Erinyes” (Furies), or the “Good People” for the fairies, passes into euphemism. See irony.
Chambers's Twentieth Century Dictionary
nEnantiosise-nan-ti-ō′sis (rhet.) the expression of an idea by negation of its contrary, as 'he is no fool'='he is wise.'
Webster's Revised Unabridged Dictionary
NL., fr. Gr. contradiction, fr. 'enanti`os opposite