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- pronunciation:
- ihn
seIn
- features:
- Word Combinations (adjective), Word Explorer, Word Parts
| part of speech: |
adjective |
| definition 1: |
having a disabling mental disease; crazy; mad.
The person who committed this crime had to be insane.He began to have delusions and feared he was going insane.- synonyms:
- crazy, demented, deranged, lunatic, mad
- antonyms:
- sane
- similar words:
- batty, berserk, cracked, crazed, daft, loco, loony, maniacal, manic, mental, nutty, psycho, schizoid, schizophrenic, touched, unbalanced, unsound
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| definition 2: |
typical of or associated with people who have such a disease.
The man looked back at the police officer with an insane grin on his face.She had the insane notion that people were following her and whispering about her.- synonyms:
- crazy, demented, deranged, lunatic, mad
- antonyms:
- rational
- similar words:
- batty, buggy, crazed, cuckoo, daffy, daft, haywire, loony, maniacal, manic, mental, meshuga, nutty, schizoid, schizophrenic, screwy, unsound
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| definition 3: |
for, or used by, insane persons, as an institution.
The old hospital was turned into an insane asylum.- synonyms:
- lunatic
- similar words:
- loony
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| definition 4: |
exceptionally foolish or senseless.
It was an insane scheme that had no chance of being successful.Going up on the roof during that storm was an insane thing to do.- synonyms:
- crazy, daft, loony, mad, wacky, wild
- antonyms:
- sane
- similar words:
- absurd, batty, berserk, bizarre, crackpot, daffy, dumb, foolish, half-baked, harebrained, idiotic, lunatic, maniacal, mental, nutty, ridiculous, screwy, senseless, unreasonable, unsound, zany
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| definition 5: |
(informal) lacking reason or common sense; foodhardy; crazy.
Put on your shoes! Are you insane? There's broken glass everywhere!I must have been insane to spend all that money on fancy furniture I don't even like.He was insane to invest in a such risky venture.- synonyms:
- crazy, daft, loco, loony, mad, mental, nuts
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| related words: |
delirious, demented, rabid, sick, unstable, wild |
adverb + (adj.)insane
a bit,
absolutely,
clinically,
completely,
criminally,
hopelessly,
incredibly,
incurably,
legally,
mentally,
perfectly,
somewhat,
temporarily,
totally,
truly,
utterly
[See all][See only the most frequent]
(adj.)insane
+ noun
ardor,
asylum,
bitch,
clown,
comedy,
genius,
giggle,
grief,
instant,
jealousy,
killer,
laugh,
laughter,
lunatic,
madness,
mile,
posse,
psychiatrist,
quest,
rage,
suspicion,
urge
[See all][See only the most frequent]
|
| derivations: |
insanely (adv.), insaneness (n.) |
The word insane
contains the following parts:
in-2
Latin
prefix
that means not, without
  More about this word part:
The prefix in-2 occurs in Latin loanwords and attaches to Latinate bases. The bases of most words prefixed with in-2 are independent
adjectives ( inadvertent
, incognizant
), although the base adjective may no longer be in widespread use (as with incessant
). Exceptions include iniquitous
and indignant
. -in 2 has multiple forms, as the 'n' sound in in-2 assimilates to the initial sound of the base to which it is attached. See the assimilated forms ig-, il-2, im-2, and ir-2.
Example words:
inaccurate, inadvertent, inalienable, inanimate, inappropriate, inapt, inarticulate, inaudible, inauspicious, incapable, incessant, incest, incognito, incognizant, incommensurate, incommodious, incompetent, incomplete, incomprehensible, inconceivable, inconclusive, incongruous, inconsiderate, inconsonant, inconspicuous, inconvenient, incorporeal, incorrect, incorrigible, incorrupt, incredible, incredulous, incurable, indecorous, indefeasible, indefinite, indelible, indemnify, independence, independent, indescribable, indestructible, indignant, indirect, indispose, indistinct, individual, indivisible, indolent, indomitable, indubitable, inedible, ineffable, inefficient, ineluctable, inept, inequality, inequity, ineradicable, inert, inevitable, inexorable, inexpensive, inexpiable, inexplicable, infallible, infamous, infelicitous, infidel, infidelity, infinite, infinitesimal, infirmity, informal, infrequent, inimical, inimitable, iniquitous, iniquity, injure, injury, innocuous, innominate, inordinate, insane, insatiable, inscrutable, inseparable, insipid, insolent, insomnia, insouciant, insuperable, intangible, interminable, intractable, intransigent, intransitive, intrepid, invaluable, inveracity, invincible, invisible, irregular
san
Latin
root
that means health
Example words:
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