adv. 1 untimely, too soon, too early He died prematurely at the age of 46 2 rashly, (over-)hastily, at half-cock, half-cocked She dismissed him prematurely, before he had the time to prove himself The gun went off prematurely, with no chance to aim it.
PREMATURELY
Meaning of PREMATURELY in English
Oxford thesaurus English vocab. Английский словарь Оксфорд тезаурус. 2012