Loony

//ˈluːni//

Synonyms for "loony" (189 found)

Ranked by relevance and common usage.

Closest matches (38)

Strong matches (57)

Related words (94)

Related word relations

OpenGloss and ConceptNet supply richer edges like generalizations, collocations, and derivations.

7 relation types

More general

2 entries

Synonyms

2 entries

Related terms

1 entries

derived

13 entries

etymologically related_to

1 entries

related to

4 entries

similar

1 entries

Translations

34 translations across 12 languages.

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Bulgarian

4 entries
  • побъркан adj (insane)
  • смахнат adj (insane)
  • куку noun (an insane or very foolish person)
  • психар noun (an insane or very foolish person)

Czech

3 entries
  • bláznivý adj (insane)
  • šílený adj (insane)
  • blázen noun (an insane or very foolish person)

Danish

4 entries
  • gal adj (insane)
  • tosset adj (insane)
  • vanvittig adj (insane)
  • galning noun (an insane or very foolish person)

Finnish

4 entries
  • hullu adj (insane)
  • hullu noun (an insane or very foolish person)
  • kaheli noun (an insane or very foolish person)
  • kahjo noun (an insane or very foolish person)

Irish

1 entries
  • gealt noun (an insane or very foolish person)

Macedonian

2 entries
  • луд adj (insane)
  • лу́дак noun (an insane or very foolish person)

Ottoman Turkish

2 entries
  • دلی adj (insane)
  • دلی noun (an insane or very foolish person)

Russian

3 entries
  • сумасше́дший adj (insane)
  • душевнобольной noun (an insane or very foolish person)
  • псих noun (an insane or very foolish person)

Scottish Gaelic

2 entries
  • amadan noun (an insane or very foolish person)
  • burraidh noun (an insane or very foolish person)

Slovak

3 entries
  • bláznivý adj (insane)
  • šialený adj (insane)
  • blázon noun (an insane or very foolish person)

Swedish

3 entries
  • galning noun (an insane or very foolish person)
  • knäppgök noun (an insane or very foolish person)
  • tokstolle noun (an insane or very foolish person)

Welsh

2 entries
  • lloerig adj (insane)
  • lloerig noun (an insane or very foolish person)

Sample sentences

10 total sentences available.

Tatoeba + Wiktionary

He's fit for the loony bin.

Source: tatoeba (1063629)

You know Tom is a loony tune.

Source: tatoeba (5071065)

Some people might regard belief in ghosts as loony.

Source: tatoeba (11591830)

If you carry on like this, they'll send you to the loony bin.

Source: tatoeba (12114570)

Showing 4 of 10 available sentences.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.