wailfulWiktionary 原文构词拆分wail词根/词干+-ful后缀Used to form adjectives from nouns, with the sense of being full of, tending to, or thoroughly possessing the quality expressed by the noun.词源说明From wail + -ful.释义（英文）形容词 Adjective(chiefly poetic) Sorrowful; mournful.词族派生词（1）wailfully