ironworks, n. smithy, smithery, farriery, forge, stithy, blacksmith's workshop, foundry.
irony, n. 1. incongruity, incongruousness, absurdity, illogicality; contrariety, contradiction, paradox, enigma; double entendre, Rhet. enantiosis.
2. derision, ridicule, sarcasm, scorn, mockery, cynicism, Rhet. asteism; satire, lampoon, burlesque, parody, travesty, farce, persiflage; skit, squib, caricature, mimicry; taunt, fleer, gibe, jeer, flout, scoff, sneer, wipe, quip, nip; raillery, banter, badinage, chaff.
3. contempt, disparagement, disdain, superciliousness; criticism, censure, hit, fling, Inf flak, rub, dig; acrimony, acrimoniousness, causticity, asperity, mordancy, acridness, acridity, pungency, venomousness, venom.
irradiate, v. 1. illuminate, light up, light, brighten; illumine, Archaic, illume; cast light upon, shine, beam; shimmer, sparkle, scintillate, glitter, gleam, coruscate; make resplendent or illustrious.
2. enlighten, inform, make aware, give insight to; open the eyes of; instruct, teach, indoctrinate, educate, guide; communicate, initiate, introduce, edify, inculcate; tutor, nurture, prepare, prime, counsel, advise; stimulate, inspire, animate, exalt, elevate; instill, impart, light the torch.
3. treat with radiation, x-ray, expose.
irradiation, n. 1. illumination, brightness, brilliance, brilliancy, splendor, refulgence, luminousness; radiation, luminescence, phosphorescence, luminosity; glow, shimmer, coruscation.
2. enlightenment, advancement, edification, perception, insight, elucidation, refinement.
3. beam, ray, infrared or ultraviolet rays, radiance, radiant heat; x-ray treatment.
irrational, adj. 1. illogical, meaningless, preposterous, extravagant, unreasonable; incredible, inconceivable, unimaginable, unthinkable; invalid, unsound, unscientific, groundless, fallible; implausible, untenable; doubtful, doubtable, dubitable, questionable.
2. absurd, ridiculous, silly, foolish, half-baked, childish, SI. cockeyed; ludicrous, nonsensical, senseless, amphigoric, SI. cockamamie; asinine, idiotic, Inf. moronic; pointless, inane, fatuous, stupid; crazy, mad, wild, insane, demented, daft, Inf. daffy, SI. kooky, SI. wacky, SI. cuckoo; peculiar, unusual, anomalous, strange, odd; empty-headed, harebrained, unintelligent, dull-witted, Inf. dumb; vacuous, muddled, muddleheaded, addlebrained, half-witted, senseless, confused, bemused; addlepated, brainless; funny, laughable, risible, derisable, humorous, droll, comical, farcical.
irrationality, n. 1. illogic, illogicality, meaninglessness, extravagance, preposterousness; incredibleness, inconceivableness, unimaginableness, unbelievableness, implausibility, untenableness, questionableness.
2. lack of judgment, stupidity, brainlessness, unsoundness, injudiciousness; incoherence, aberrancy, oddness, lunacy, craziness, insanity, Psychiatry, dementia.
3. absurdity, ridiculousness, ridiculosity, silliness, foolishness, folly, childishness, tomfoolery, absurdness; ludicrousness, nonsense, senselessness; amphi-gory, bosh, poppycock, drivel, gibberish, balderdash, fiddle-faddle; babble, twaddle, prattle; pointlessness, inanity, fatuity, fatuousness; asininity, idiocy, imbecility; madness, wildness, daftness, SI. kookiness; peculiarity, unusualness, strangeness; empty-headedness, unintelligence, Inf. dumbness, dullness; humor, hilarity, hysterics.