What does 馴れ馴れしい mean in Japanese?

overly familiar, overfamiliar, too friendly, too free, cheeky

馴れ馴れしい (Narenareshii) — overly familiar · Japanese Dictionary

なれなれしい

Narenareshii

Other forms: 狎れ狎れしい、馴々しい、慣々しい、慣慣しい

馴れ馴れしい (Narenareshii) is a Japanese i-adjective meaning “overly familiar, overfamiliar, too friendly, too free”.

彼は私の妻になれなれしすぎだ。
He is getting far too familiar with my wife.
年上の人にあまり馴れ馴れしくしてはいけない。
You must not take liberties with older people.
一方で彼は誰にでも親切なのだが、他方でなれなれしすぎることは決してない。
On the one hand he is kind to everyone, but on the other hand he never behaves with too much familiarity.

Sentences from Tatoeba (CC BY 2.0 FR).