相关单词同义词No Worries, rhathymia, 近义词 airiness 通风, nonchalance 不关心, indifference 不重视, unconcern 不关心, happiness 幸福, lightsomeness 轻快(发光), carefreeness 轻松愉快, lightheartedness 自由自在临近词Ins, inslot相似词insoluble, insolvent, insomnia, insomniac, inspect, inspection, inspection chamber, inspection pit, 返回 insouciance