beneficial adj.
VERBS be, prove Some alternative treatments may prove highly beneficial. | consider sth
ADV. extremely, highly, very | entirely, wholly | clearly | mutually The arrangement was mutually beneficial. | medically, socially
PREP. for I think it would be beneficial for each committee member to have a copy of the report. | to Exercise is extremely beneficial to health.
You can also check other dicts: beneficial (English, 中文解释 ), wordnet sense, Collins Definition