| unproductive | |
| fruitless(adjective, product) | |
| idle(adjective, out, lazy, worthless, ineffective) | |
| unfruitful(adjective, barren, unprofitable) | |
| ineffective(adjective, strong, fit, successful) | |
| barren(adjective, unable, unprofitable) | |
| baneful | |
| consumptive | |
| abortive(adjective, failing) | |
| destructive(adjective, injurious, devastating) | |
| empty(adjective, ineffective, fruitless) | |
| futile(adjective, hopeless, pointless) | |
| impotent(adjective, strong, weak, useless, competent) | |
| infertile(adjective, fruit, young) | |
| sterile(adjective, clean, unproductive) | |
| unprofitable(adjective, gain) | |
| disadvantageous | |
| ineffectual | |
| inefficient | |
| not helpful |
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| APA | Smart Define. (2015). productive thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/productive/thesaurus/antonyms |
| Chicago | Smart Define. 2015. "productive thesaurus" https://smartdefine.org/productive/thesaurus/antonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, productive thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/productive/thesaurus/antonyms>. |
| MLA | Smart Define. "productive thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/productive/thesaurus/antonyms> |