顽强的的反义词

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软弱的, 脆弱的, 懦弱的, 怯弱的

1懦弱的
英语:cowardly, fainthearted, milk-livered, poor-spirited, sheepish, spineless, weak, weakling, white-livered

2软弱的
英语:weak, feeble, flabby, flaccid, lank, limp, feckless, weak-kneed

3脆弱的
英语:flimsy, frail, vulnerable, tender, brittle, washy, weak