1valid (for sth) that is legally or officially acceptable (法律上)有效,得到认可:
This passport is valid for one year only.这本护照有效期仅一年。
2 based on what is logical or true; acceptable 有理的;确凿的;站得住脚的:
I could raise no valid objections to the plan.我对那个计划提不出有力的反对意见。Jeff's making a perfectly valid point.杰夫的话说得完全有道理。 [OPP] invalid 反义词为invalid➔validity /vəˈlɪdəti ||; vəˈlɪdətɪ/ noun [U]