顽固 wángù hard-nosed; obdurate; obstinate; pertinacity; stubborn

顽抗 wánkàng recalcitrance; recalcitrant

顽皮 wánpí insubordinate; naughtiness; naughty

顽强 wánqiáng hardiest; pertinaciously; tenacious

顽童 wántóng urchin

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