Kookish

adj, slang

adj, slang ·Uncommon ·College level

Definitions

Adjective

1
Like a kook; eccentric. US, slang

Synonyms

barmy eccentric kooky kooky squirrelly wacko

Etymology

From kook + -ish.

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