allowing or characterized by great or excessive freedom of behaviour 宽容的,放任的 I was not a permissive parent. 我不是一个放任孩子的家长。 the permissive society of the 60s and 70s. 60和70年代的放纵社会。
(Law)allowed but not obligatory; optional (律)允许而非强制的;可选择的 the Hague Convention was permissive, not mandatory. 海牙公约是可变通的,不是强制性的。 ■denoting a path available for public use by the landowner's consent, not as a legal right of way (道路)公众获准可使用的
(Biology)allowing a biological or biochemical process to occur (生)允许的,许可的 the mutants grow well at the permissive temperature. 那些突变体在许可温度下长势良好。 ■allowing the infection and replication of viruses (病毒的感染和复制)可发生的,可出现的
派生 permissively adverb permissiveness noun 语源
late 15th cent. (in the sense 'tolerated, allowed'): from Old French, or from medieval Latin permissivus, from permiss- 'allowed', from the verb permittere (see permit)