- chummy, matey, pally, palsy-walsy - (used colloquially) having the relationship of friends or pals
Antonym: unfriendly (indirect, via friendly)
- chummy, buddy-buddy, thick - (used informally) associated on close terms; "a close friend"; "the bartender was chummy with the regular customers"; "the two were thick as thieves for months"
Antonym: distant (indirect, via close)