Insaniac
//ɪnˈseɪniˌæk// adj, noun, slang
adj, noun, slang ·Uncommon ·College level
Definitions
Noun
- 1 One who is insane and maniacal. derogatory, slang
Adjective
- 1 Insane and maniacal. slang
"And although his insaniac towing of Jezebel had demonstrated that he might be just as crazy as the rest of them, it was hard to sit in this new Bronco and feel bad anymore about their old car."
Synonyms
All synonymsExample
More examples"And although his insaniac towing of Jezebel had demonstrated that he might be just as crazy as the rest of them, it was hard to sit in this new Bronco and feel bad anymore about their old car."
Etymology
Blend of insane + maniac.
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.