puerility/pjuəˈrɪlətɪ; ˌpjuə`rɪlətɪ/ n(fml derog 文, 贬)(a) [U] puerile behaviour; childishness 幼稚; 愚蠢.(b) [C esp pl 尤作复数](fml 文) childish and foolish act, idea, statement, etc 幼稚、 愚蠢的言行、 想法等.
牛津英汉双解词典