effortlessness
词形变化：
副词: effortlessly | 名词: effortlessness |
同义词：
easy | natural | simple | facile | languid | supine | inactive | sluggish | downhill | snap | recumbent | fluent | lucid | smooth | easy as pie | no sweat | unforced | piece of cake | child's play | unproblematic | graceful | uncomplicated | painless | sweat | play | as | cake | piece | of | no | pie | casual |
反义词：