gainful(形容词):有收益的;有报酬的;能带来利润或收入的(常用于 gainful employment “有报酬的工作”)。也可引申为“有益的/有收获的”(较少见)。
/ˈɡeɪnfəl/
A gainful job can help you support your family.
一份有报酬的工作能帮助你养家。
After years of training, she finally found gainful employment that matched her skills and offered long-term security.
经过多年的培训,她终于找到了与技能匹配、并提供长期保障的有报酬工作。
来自 gain(收益、获得)+ 形容词后缀 -ful(“充满……的/具有……的”),字面意思是“充满收益的”,因此引申为“能带来收入或利润的”。