unforced

劍橋詞典

(of an error ) caused by a mistake a player has made rather than as the result of their opponent's skilful play
主動的（失誤）

done as a result of your own decision , rather than being forced by someone else
非強(qiáng)迫的，自願的
an unforced agreement between individuals about what to do 個人之間對如何行動的自主協(xié)議

happening or done without any effort
不費(fèi)勁的，不勉強(qiáng)的，自然的
natural , unforced laughter 自然且自發(fā)的笑聲 返回 unforced