regretfulWiktionary 原文英美adj.惋惜的，遗憾的，抱歉的中文释义来自 ECDICT构词拆解regretregret词干ful-ful后缀-fulUsed 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 regret + -ful.释义形容词adjective1Full of feelings of regret, indulging in regrets.2Sorrowful about what has been lost or done.同族词派生词 3regretfully·regretfulness·unregretful