petulant
From LSJ
Ζῆν οὐκ ἄξιος, ὅτῳ μηδὲ εἷς ἐστι χρηστὸς φίλος → Life is not worth living if you do not have at least one friend.
adj.
P. and V. δύσκολος. Rash: P. προπετής, P. and V. θρασύς. Wanton: Ar. and P. νεανικός. Be petulant, v.: Ar. and P. νεανιεύεσθαι.