Definition of Insane

1. Adjective. Afflicted with or characteristic of mental derangement. "Insane laughter"


2. Adjective. Very foolish. "A completely mad scheme to build a bridge between two mountains"
Exact synonyms: Harebrained, Mad
Similar to: Foolish
Derivative terms: Madness

Definition of Insane

1. a. Exhibiting unsoundness or disorder of mind; not sane; mad; deranged in mind; delirious; distracted. See Insanity, 2.

Definition of Insane

1. Adjective. Exhibiting unsoundness or disorder of mind; not sane; mad; deranged in mind; delirious; distracted. ¹

2. Adjective. Used by, or appropriated to, insane persons; as, an insane hospital. ¹

3. Adjective. Causing insanity or madness. ¹

4. Adjective. Characterized by insanity or the utmost folly; chimerical; unpractical; as, an insane plan, attempt, etc. ¹

¹ Source: wiktionary.com

Definition of Insane

1. mentally unsound [adj -SANER, -SANEST] : INSANELY [adv]

Medical Definition of Insane

1. 1. Of unsound mind; severely mentally impaired; deranged; crazy. 2. Relating to insanity. Origin: L. In-neg. + sanus, sound, sane (05 Mar 2000)

Lexicographical Neighbors of Insane

inrushed
inrushes
inrushing
inrushings
ins.
ins and outs
insafety
insalivation
insalubrious
insalubriousness
insalubrities
insalubrity
insalutary
insanability
insanable
insane (current term)
insane asylum
insane asylums
insanely
insaneness
insanenesses
insaner
insanery
insanest
insangu
insaniate
insaniated
insaniates
insaniating
insanie

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