noun-modifying (irregular)
experienced; practiced; familiar
Prenominal form of 慣れる, used to describe a person or action that is accustomed or skilled through experience.
He uses the knife with practiced hands.
It's a familiar route, so I won't get lost.
familiar to the ear; well-known sound
Prenominal form of the verb 慣れる (to get used to), from classical Japanese 慣る (naru).