c. 1300, "completely, entirely; openly, directly; at once, without hesitation," from out (adv.) + right (adj.1)). Meaning "all at once" is attested from c. 1600. As an adjective, "direct, downright," from 1530s.
权威例句
1. The resolution stopped short of an outright declaration of independence.
这项决议几乎成为公开的独立宣言。
2. The response of the audience varied from outright rejection to warm hospitality.