adjective, peach·i·er, peach·i·est.
- resembling a peach, as in color or appearance.
- Informal. excellent; wonderful; fine.
adjective peachier or peachiest
- of or like a peach, esp in colour or texture
- informal excellent; fine
adj.1590s, “resembling a peach” in some way, from peach (n.) + -y (2). Slang sense of “attractive” attested by 1900. Extended form peachy-keen recorded from 1953. Related: Peachiness.