| unreliable(adjective, clear, bad, strong, weak) | |
| undependable(adjective, bad, weak, responsible, irresponsible) | |
| not good | |
| disloyal | |
| untrustworthy(adjective, bad, open, weak, honest) | |
| fickle(adjective, cold, hot, steady, vacillating) | |
| dishonest(adjective, good, bad, open, weak) | |
| shameful | |
| ever-changing | |
| hypocritical(adjective, deceitful, pretending) | |
| liminal | |
| unsound(adjective, strong, sound, well) | |
| erratic(adjective, calm, unpredictable, consistent, wandering) | |
| faithless(adjective, faithful, disloyal) | |
| capricious(reasonable, predictable) | |
| changeable(calm, constant) | |
| corrupt(adjective, bad, weak, undependable) | |
| irresponsible(adjective, bad, weak, careless, reckless) | |
| non-punctual | |
| perfidious |
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| APA | Smart Define. (2016). reliable thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/reliable/thesaurus/antonyms |
| Chicago | Smart Define. 2016. "reliable thesaurus" https://smartdefine.org/reliable/thesaurus/antonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2016, reliable thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/reliable/thesaurus/antonyms>. |
| MLA | Smart Define. "reliable thesaurus" 3 March 2016. Web. 21 September 2026. <https://smartdefine.org/reliable/thesaurus/antonyms> |