Children's, Intermediate and Advanced Online English Dictionary & Thesaurus

Comprehensive
Dictionary Suite
Help
Help
Help
 
Intermediate Dictionary
   
Display options
Show syllables
Show Lookup History
Double-Click Lookup
  Show Spanish support
 
Pronunciation
Wordsmyth
  Phonics
  IPA
 
Entry formats
Standard
  Classic
 
Lookup History
insane

in·sane

insane

 
 
pronunciation:
ihn seIn
features:
Word Explorer, Word Parts
part of speech: adjective
definition 1: having a disease of the mind; crazy; mad.
The man was talking to an imaginary person, and he seemed to be insane.
synonyms:
crazy, mad
antonyms:
sane
definition 2: very foolish or silly.
The idea of humans flying in the air in flying machines was considered insane at one time.He could always make us laugh with his insane jokes.
synonyms:
crazy, mad
antonyms:
sane
similar words:
absurd, dumb, foolish, ridiculous, unreasonable
derivations: insanely (adv.), insaneness (n.)
Word Explorer
See
  mind
Word Parts
The word insane contains the following parts:
in-2 Latin prefix that means not, without
Show wordsHide wordsMore 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 . -in2 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.
san Latin root that means health
Show wordsHide wordsExample words: