otonabinai
1. Not acting like an adult; Not mature
Verb
#47907
1. Not acting like an adult; Not mature
1. to look (sound, behave) grown-up; to be adult-like
1. Don't act like an adult.; Don't be mature.
1. Don't act like an adult.; Don't be mature.
1. Don't act like an adult.; Don't be mature.
1. Act like an adult.; Be mature.
1. To make someone seem/act mature; To make someone grow up quickly
1. Don't act like an adult.; Don't be precocious.
1. As is; Left as an adult
1. If/when one becomes an adult; When one acts like an adult