Standard Lemma guide
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
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adj
Capricious, impulsive, or reckless; also, bizarre, crazy, zany; or foolish, idiotic.
Definition source: English Wiktionary via Wiktextract
Synonyms: none provided
Antonyms: none provided
noun
A person who acts in a capricious, impulsive, or reckless manner.
Definition source: English Wiktionary via Wiktextract
Synonyms: mad lad, madlad
Antonyms: none provided
noun
A very foolish or irresponsible person; a fool, an idiot.
Definition source: English Wiktionary via Wiktextract
Usage: South-Asia
No example sentence was provided for this meaning.
Synonyms: fathead, alcatote, asshat, arsehole, asshole, bayard, berk, birdbrain, blither, bobchin, bonehead, bozo, buffoon, brickhead, Charlie, chucklehead, chowderhead, chump, clart, clown, der-brain, dill pickle, dim bulb, dimwit, dingleberry, dipshit, dipstick, dirtbrain, div, divvo, divvy, dolt, donk, doodle, doofus, dope, dork, dote, dotterel, dullard, dumbass, dumbbell, dumbo, dumb fuck, dummy, dunce, dunderhead, dupe, fenderhead, fiddle, fuckwit, fuzznut, geck, gig, gink, goober, gooseberry, gowk, gubbins, gump, half-baked, ha'p'orth, Homer Simpson, ignoramus, imbecile, jamoke, jerk, jerkoff, jolterhead, jolthead, juggins, jughead, knucklehead, lamebrain, mameluke (US (Italian-American), slang), maroon, meathead, mong, moron, mug, muggins, mushhead, nimrod, nincompoop, nit, nitwit, not the sharpest knife in the drawer, numskull, numps, numpty, nupson, oaf, pillock, pinhead, plonker, prat, retard, shit for brains, shithead, shitwit, schmo, schmuck, smooth brain, snapperhead, softhead, sohai, sot, stupid, sucker, thickhead, tonto, tool, tosser, tosspot, tubelight, twat, twerp, twit, wally, wantwit, wazzock, yampy
Antonyms: none provided
noun
An insane person; a lunatic.
Definition source: English Wiktionary via Wiktextract
Usage: obsolete, rare
No example sentence was provided for this meaning.
Synonyms: madhead, crazyhead, madman, basket case, basket weaver, crack, crackpot, crazy, dingbat, eccentric, fruit and nut case, fruit cake, fruit loop, fruitloop, head case, kook, loony, loony tune, lunatic, madcap, mental case, nut, nut ball, nutbar, nutburger, nutcase, nutjob, nutter, psycho, psychoceramic, schizo, screwball, space cadet, space pilot, unconventional, wackadoo, wackadoodle, wacko, whackjob, whacko, weirdo, wingnut, space case
Antonyms: none provided
adjective satellite
characterized by undue haste and lack of thought or deliberation; (`brainish' is archaic)
Definition source: Princeton WordNet 3.0
Synonyms: hotheaded, impulsive, impetuous, tearaway(a), brainish
Antonyms: none provided
noun
a reckless impetuous irresponsible person
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Synonyms: daredevil, hothead, swashbuckler, lunatic, harum-scarum
Antonyms: none provided
Broader terms: adventurer, venturer
Narrower terms: tearaway
History
The noun is derived from mad + cap (“(informal) head”). The adjective is from an attributive use of the noun.
Across languages
8 source translations are retained for this English entry.
