brainish


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brain·ish

 (brā′nĭsh)
adj. Archaic
Headstrong; impetuous.

brainish

(ˈbreɪnɪʃ)
adj
archaic impulsive or impetuous
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.brainish - 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' is archaic)
archaicism, archaism - the use of an archaic expression
incautious - lacking in caution; "an incautious remark"; "incautious talk"