brainish
brai·nish
adjective
1.
characterized by undue haste and lack of thought or deliberation
- “a hotheaded decision”
- “liable to such impulsive acts as hugging strangers”
- “an impetuous display of spending and gambling”
- “madcap escapades”
- “brainish”
Origin
From brain + -ish.
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.