1. Belonging to, or resembling, a bat.
2. (Slang) Crazy.

Crazy or far-fetched; a crackpot idea.

ETYM From Craze.
1. Insane; mentally deranged; SYN. insane, deranged, demented, psychologically disturbed.
2. Marked by foolish or unreasoning fondness; SYN. dotty, gaga, enamored, infatuated, in love, smitten, soft on, taken with.
3. Bizarre or fantastic.
4. (Informal) Possessed by inordinate excitement.
5. (Informal) Intensely enthusiastic about or preoccupied with.
6. (Informal) Foolish; totally unsound; SYN. half-baked, screwball, softheaded. + prikaži više

1. Of, relating to, or characteristic of delirium
2. Affected with or marked by delirium

ETYM From Dement.
Insane; mad; of unsound mind.

ETYM Written also hairbrained.
Very foolish; SYN. insane, mad.

ETYM Latin insanus. Related to In- not, and Sane.
Afflicted with or characteristic of mental derangement.

(Spanish) insane. loco disease, kind of nervous disease of cattle, sheep and horses due to their eating loco weed.

ETYM French lunatique, Latin lunaticus, from luna the moon. Related to Lunar.
(Informal) Some insane and believed to be affected by the phases of the moon; SYN. moonstruck.

1. Deranged; crazy; insane.
2. Excited beyond self-control or the restraint of reason; inflamed by violent or uncontrollable desire, or passion
3. Extravagant; immoderate.
4. Furious with rage or anger.
5. Angry; out of patience; vexed
6. Rabid; afflicted with rabies

1. Inclined to wild sports; delighting in rash, absurd, or dangerous amusements.
2. Wild; reckless.

1. Enthusiastic, keen
2. Insane, crazy

Having the flavor of nuts; SYN. nutlike.

(British informal) Trivial

Absurdly or amusingly eccentric or irrational; crazy

(Informal) Crazy; wild or far-fetched.

A person who lacks good judgment; SYN. sap, saphead, muggins, tomfool.

An insane person; SYN. madman, maniac.

A man who is mad; lunatic; a crazy person.

1. A madman.
2. A fanatic; one who is obsesssed.