WordWeb Online

1. Marked by spirited enjoyment
   - zestful, yeasty, zesty
    
2. Informal or slang term for mentally irregular
   "it used to drive my husband barmy"
   - balmy [archaic], bats, batty, bonkers, buggy [N. Amer], cracked, crackers, daft, dotty, fruity, haywire, kooky, kookie, loco, loony, loopy, nuts, nutty, round the bend, around the bend, wacky, whacky, daft as a brush [Brit], wacko, round the twist [Brit]

Derived forms: barmiest, barmier

See also: insane, spirited