1. (v. i.) To chirp or chirrup.

2. (a.) Lively; cheerful; talkative.

active activist activistic alert alive alive and kicking animate animated bouncing bouncy breezy bright bright-eyed and bushy-tailed brisk bubbly cheep chip chirk chirm chirpy chirrup chirrupy chitter ebullient effervescent energetic enjoying health eupeptic fine fit fit and fine frisky full of beans full of go full of life full of pep gay healthful healthy in condition in fine fettle in fine whack in good case in good health in good shape in health in high feather in mint condition in shape in the pink keen live lively mercurial militant neat orderly peart peep peppy perky pert quicksilver shipshape smacking snappy snug spanking spick-and-span spirited sprightly spry tidy trig trim tweedle tweet twitter uncluttered vivacious well-groomed zingy