- Definitions|2
- Thesaurus|1.7k
- Abbreviations|0
49 entries under adjective topic. ×
| impossible | |
| impractical(improper, impossible) | |
| unfeasible(improper, impossible, feasible) | |
| inconceivable(improper, impossible) | |
| unlikely(improper, impossible) | |
| unworkable(improper, impossible) | |
| unreasonable(improper, impossible) | |
| hopeless | |
| fantastic | |
| implausible(improper, impossible) | |
| impracticable | |
| unattainable(improper, impossible) | |
| unpractical(improper, impossible) | |
| disadvantageous(improper, impossible) | |
| improbable | |
| improper | |
| inappropriate(improper, impossible) | |
| incredible | |
| infeasible | |
| preposterous |
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| APA | Smart Define. (2015). feasible thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/feasible/thesaurus/antonyms |
| Chicago | Smart Define. 2015. "feasible thesaurus" https://smartdefine.org/feasible/thesaurus/antonyms (accessed September 28, 2026). |
| Harvard | Smart Define 2015, feasible thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/feasible/thesaurus/antonyms>. |
| MLA | Smart Define. "feasible thesaurus" 13 April 2015. Web. 28 September 2026. <https://smartdefine.org/feasible/thesaurus/antonyms> |