| harmless(adjective, good, bad) | |
| helpful(adjective, good, cool, cold, useless) | |
| desirable(adjective, good, bad, repulsive, advantageous) | |
| anodyne | |
| good(adjective, harmless) | |
| safe(adjective, good, insecure, dangerous, harmless) | |
| advantageous(adjective, good, unhappy, harmless) | |
| benign(adjective, rough, harsh, advantageous) | |
| beneficial(adjective, good, bad, disagreeable, advantageous) | |
| innocuous(adjective, harmless) | |
| salubrious | |
| conducive | |
| favorable(adjective, good, timely, advantageous, harmless) | |
| healthy(adjective, good, harmless) | |
| profitable(adjective, good, harmless) | |
| remedial(adjective, healing, restorative) | |
| symbiotic | |
| therapeutic(adjective, healing) | |
| useful(adjective, bad, awkward, useless) | |
| beneficent |
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| APA | Smart Define. (2016). harmful thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/harmful/thesaurus/antonyms |
| Chicago | Smart Define. 2016. "harmful thesaurus" https://smartdefine.org/harmful/thesaurus/antonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2016, harmful thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/harmful/thesaurus/antonyms>. |
| MLA | Smart Define. "harmful thesaurus" 24 March 2016. Web. 22 September 2026. <https://smartdefine.org/harmful/thesaurus/antonyms> |