Crazy vs. Cuckoo: What's the Difference?

Mentally deranged.

A grayish bird (Cuculus canorus) of Eurasia and Africa that has a characteristic two-note call and lays its eggs in the nests of birds of other species.

(Informal) Odd or eccentric in behavior.

Any of various other birds of the family Cuculidae.

Possessed by enthusiasm or excitement

The call or cry of one of these birds.

Immoderately fond; infatuated

(Slang) A foolish or crazy person.

Intensely involved or preoccupied

To repeat incessantly, as a cuckoo does its call.

Foolish or impractical; senseless

Lacking in sense; foolish or crazy.

Intensely annoyed or irritated

Any of various birds, of the family Cuculidae, famous for laying its eggs in the nests of other species; but especially a common cuckoo (Cuculus canorus), that has a characteristic two-note call.

Disorderly or askew

The sound of that particular bird.

(Informal) Extremely; very

The bird-shaped figure found in cuckoo clocks.

One who is or appears to be mentally deranged

The cuckoo clock itself.

Of unsound mind; insane; demented.

A person who inveigles themselves into a place where they should not be (used especially in the phrase a cuckoo in the nest).

Out of control.

(slang) Someone who is crazy.

Very excited or enthusiastic.

To make the call of a cuckoo.

In love; experiencing romantic feelings.

To repeat something incessantly. en

(informal) Very unexpected; wildly surprising.

(slang) Crazy; not sane.

(obsolete) Flawed or damaged; unsound, liable to break apart; ramshackle.

A bird belonging to Cuculus, Coccyzus, and several allied genera, of many species.

(obsolete) Sickly, frail; diseased.

A man who is a stupid incompetent fool

(slang) Very, extremely.

Any of numerous European and North American birds having pointed wings and a long tail

An insane or eccentric person; a crackpot.

Repeat monotonously, like a cuckoo repeats his call

Eccentric behaviour; lunacy; craziness.

Characterized by weakness or feebleness; decrepit; broken; falling to decay; shaky; unsafe.

Broken, weakened, or dissordered in intellect; shattered; demented; deranged.

Inordinately desirous; foolishly eager.

Someone deranged and possibly dangerous

Affected with madness or insanity;

Foolish; totally unsound;

Marked by foolish or unreasoning fondness;

Possessed by inordinate excitement;

Bizarre or fantastic;

Intensely enthusiastic about or preoccupied with;