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Cuckoo synonyms

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An eccentric person, especially one with bizarre ideas.
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  1. An eccentric person, especially one with bizarre ideas.
  2. A mentally unbalanced or eccentric person; often, specif., a person who holds or is a proponent of a highly unorthodox or eccentric belief
One who is or appears to be mentally deranged:
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  1. One who is or appears to be mentally deranged:
  2. An insane or eccentric person; a crackpot.
(Physics) A disk or wheel having its axis of revolution displaced from its center so that it is capable of imparting reciprocating motion.
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  1. (Physics) A disk or wheel having its axis of revolution displaced from its center so that it is capable of imparting reciprocating motion.
  2. An odd or unconventional person
  3. A disk set off center on a shaft and revolving inside a strap that is attached to one end of a rod, thereby converting the circular motion of the shaft into back-and-forth motion of the rod
An insane person
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A handle or arm bent at right angles and connected to a shaft of a machine, used to transmit motion or to change rotary motion into reciprocating motion, or vice versa
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  1. A handle or arm bent at right angles and connected to a shaft of a machine, used to transmit motion or to change rotary motion into reciprocating motion, or vice versa
  2. (Rare) A fanciful or unusual turn of speech or thought; conceit
  3. (Informal) A person who has odd, stubborn notions about something; eccentric
One who is crazy or deranged.
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  1. One who is crazy or deranged.
  2. Any of an order (Gaviiformes) of fish-eating diving birds, with a sharp bill and webbed feet, found mainly in subarctic regions: noted for its weird cry
  3. A crazy person
A foolish or crazy person.
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  1. A foolish or crazy person.
(Slang) A crazy, stupid, or eccentric person
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  1. (Slang) A crazy, stupid, or eccentric person
(Slang) An empty-headed or silly person.
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  1. (Slang) An empty-headed or silly person.
  2. (Informal, former) A stone, stick, or other object suitable for throwing
  3. (Slang) An unspecified gadget or other small article, especially one whose name is unknown or forgotten.
A person regarded as strange, eccentric, or crazy.
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  1. A person regarded as strange, eccentric, or crazy.
(Informal) A difficult endeavor or problem:
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  1. (Informal) A difficult endeavor or problem:
  2. A small block of metal or wood with a central, threaded hole that is designed to fit around and secure a bolt or screw.
  3. A dry, indehiscent simple fruit consisting of one seed surrounded by a hard and thick pericarp (fruit wall). The seed does not adhere to the pericarp but is connected to it by the funiculus. A nut is similar to an achene but larger. Acorns, beechnuts, chestnuts, and hazelnuts are true nuts. Informally, other edible seeds or dry fruits enclosed in a hard or leathery shell are also called nuts, though they are not true nuts. For instance, an almond kernel is actually the seed of a drupe. Its familiar whitish shell is an endocarp found within the greenish fruit of the almond tree. Peanuts are actually individual seeds from a seed pod called a legume.
(Baseball) A pitched ball that curves in the direction opposite to that of a normal curve ball.
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  1. (Baseball) A pitched ball that curves in the direction opposite to that of a normal curve ball.
  2. (Baseball) A ball thrown by a right-handed pitcher that curves to the right, or one thrown by a left-handed pitcher that curves to the left
  3. (Slang) A person who seems erratic, irrational, unconventional, or unbalanced
A strange person, event, or thing.
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  1. A strange person, event, or thing.
  2. (Informal) Someone or something weird.
A strange or eccentric person.
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  1. A strange or eccentric person.
(Archaic) Having or caused by a mental disorder
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  1. (Archaic) Having or caused by a mental disorder
Intensely involved or preoccupied:
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  1. Intensely involved or preoccupied:
  2. Out of control.
  3. In love; experiencing romantic feelings.
Foolish; stupid.
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  1. Foolish; stupid.
  2. Insane; crazy
  3. Crazy; deranged.
  1. Insane or mentally ill.
  2. Mentally deranged; insane; mad
  3. (Informal) Crazy or foolish.
Physically or mentally ill.
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  1. Physically or mentally ill.
  2. Put out of order; jumbled
  3. Chaotic; without clear order; in a state of disorder.
Driven mad; crazed
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  1. Driven mad; crazed
  2. Extremely troubled; mentally confused; distracted; harassed
  3. Deeply hurt, saddened, or worried; distressed.
Amusingly eccentric or unconventional.
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  1. Amusingly eccentric or unconventional.
  2. Mentally unbalanced; crazy.
  3. (Informal) Feebleminded or crazy
Intended for use by such persons:
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  1. Intended for use by such persons:
  2. Not sane; mentally ill or deranged; demented; mad
  3. Characteristic of or associated with persons who are mentally deranged:
Of or for people who are mentally deranged.
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  1. Of or for people who are mentally deranged.
  2. Of or for insane persons
  3. Suffering from lunacy; insane
Angry; resentful:
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  1. Angry; resentful:
  2. Angry or provoked
  3. (Slang) Excellent; wonderful:
Of, having, or showing mania; maniacal
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  1. Of, having, or showing mania; maniacal
Wildly irresponsible:
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  1. Wildly irresponsible:
  2. Of, having, or showing mania; wildly insane; raving
  3. Like a maniac; insane; frenzied.
Having a mental illness.
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  1. Having a mental illness.
  2. Having a psychological disorder.
Dazed or distracted with romantic sentiment.
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  1. Dazed or distracted with romantic sentiment.
  2. Affected mentally in some way, supposedly by the influence of the moon
  3. Mentally deranged; crazy.
Started on the way; going:
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  1. Started on the way; going:
  2. Somewhat crazy; eccentric:
  3. Not correct; in error; wrong
Slightly mentally deficient; touched in the head.
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  1. Slightly mentally deficient; touched in the head.
  2. Emotionally moved (by), made to feel emotion (by).
  3. Emotionally affected; moved:
Not treating all sides with due importance:
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  1. Not treating all sides with due importance:
  2. Not in balance or in proper balance.
  3. Showing or marked by erratic or volatile emotions or behavior.
Not safe, firm, or solid; insecure
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  1. Not safe, firm, or solid; insecure
  2. Not true or logically valid; fallacious:
  3. In horse management an unsound horse is one suffering ill-health that affects its suitability for its intended work.
Not in conformity with fact or truth; incorrect or erroneous:
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  1. Not in conformity with fact or truth; incorrect or erroneous:
  2. Not fitting or suitable; inappropriate or improper:
  3. Contrary to conscience, morality, or law:
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  1. (Informal) irrational, crazy
  2. (Slang) Crazy, enraged, etc.
  3. Crazy:
Having a harsh or dissonant tone:
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  1. Having a harsh or dissonant tone:
  2. Broken or fractured, usually without complete separation of parts; having a crack or cracks
  3. (Informal) Mentally deranged; crazy.
Frolicsome in a giddy way
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  1. Frolicsome in a giddy way
  2. A little crazy
  3. Crazy; foolish; silly
Carried away as by love or enthusiasm
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  1. Carried away as by love or enthusiasm
  2. Mentally confused; crazy
  3. Silly; crazy.
(Of a person) insane
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  1. (Of a person) insane
  2. Mentally deranged; crazy.
  3. Crazy; demented
Out of one's mind; crazy:
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  1. Out of one's mind; crazy:
  2. Wildly enthusiastic, excited, etc.
  3. Crazy or eccentric
Mentally deranged; crazy.
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  1. Mentally deranged; crazy.
  2. (Slang) Crazy or eccentric
(Computers) Having many software bugs:
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  1. (Computers) Having many software bugs:
  2. (Slang) Mentally ill; insane
  3. (Slang) Crazy.
Rich or mellow in tone, esp. excessively so
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  1. Rich or mellow in tone, esp. excessively so
  2. Like fruit in taste or smell
  3. (Slang) Crazy; eccentric.
(Western US) intoxicated by eating locoweed
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  1. (Western US) intoxicated by eating locoweed
  2. Mentally deranged; crazy.
  3. (Slang) Crazy; demented
Extremely enthusiastic:
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  1. Extremely enthusiastic:
  2. Crazy; foolish
(Slang) Enthusiastic, often to excess
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  1. (Slang) Enthusiastic, often to excess
  2. Having a flavor like that of nuts:
  3. Odd, foolish, crazy, etc.
Ludicrously odd, unlikely, or inappropriate.
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  1. Ludicrously odd, unlikely, or inappropriate.
  2. Mentally unbalanced; crazy
  3. Eccentric or crazy.
(Slang) Erratic, eccentric, or irrational; zany
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  1. (Slang) Erratic, eccentric, or irrational; zany
  2. Eccentric or irrational:
  3. Crazy; silly:
(Chiefly Brit., Slang) Crazy; insane
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  1. (Chiefly Brit., Slang) Crazy; insane
Mentally incompetent. Mentally incompetent.
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  1. Mentally incompetent. Mentally incompetent.
  2. Not of sound mind and hence not legally competent.
Find another word for cuckoo. In this page you can discover 62 synonyms, antonyms, idiomatic expressions, and related words for cuckoo, like: crackpot, crazy, eccentric, lunatic, crank, loon, loony, ding-a-ling, dingbat, kook and nut.