-less
/lɪs/suffix
forming adjectives and adverbs ［构成形容词和副词］
1
- (from nouns) not having; without; free from由名词构成表示“无…的”, “没有”, “不…的”：
flavourless
skinless.
2
- (from verbs) not affected by or not carrying out the action of the verb由动词构成表示“不…的”, “不能…的”：
fathomless
tireless.
派生词
-lessly
suffixforming corresponding adverbs
构成相应的副词
-lessness
suffixforming corresponding nouns
构成相应的名词。
词源
Old English -lēas, from lēas 'devoid of'.