callow
/ˈkæləʊ/adjective
- (especially of a young person) inexperienced and immature（尤指年轻人）无经验的; 不成熟的：
earnest and callow undergraduates.
严肃认真但天真幼稚的大学本科生。
派生词
callowly
adverbcallowness
noun词源
Old English calu 'bald', of West Germanic origin, probably from Latin calvus 'bald'. This was extended to mean 'unfledged', which led to the present sense 'immature'.