Synonyms for (adjective) buddy-buddy

Synonyms: buddy-buddy, chummy, thick

Definition: (used informally) associated on close terms

Usage: a close friend; the bartender was chummy with the regular customers; the two were thick as thieves for months

Similar words: close

Definition: close in relevance or relationship

Usage: a close family; we are all...in close sympathy with...; close kin; a close resemblance