Adjective beneficial has 2 senses
- beneficial, good - promoting or enhancing well-being; "an arms limitation agreement beneficial to all countries"; "the beneficial effects of a temperate climate"; "the experience was good for her"
Antonyms: disadvantageous, harmful (indirect, via advantageous)
- beneficial, good, salutary - tending to promote physical well-being; beneficial to health; "beneficial effects of a balanced diet"; "a good night's sleep"; "the salutary influence of pure air"
Antonym: unhealthful (indirect, via healthful)
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