| disordered(mean, weak, down, ill, sick) | |
| execrable(adjective, horrible, sickening) | |
| feeble(adjective, mean, weak, thin, green) | |
| foolish(adjective, unintellectual) | |
| fragmentary | |
| frail(adjective, mean, weak, thin, feeble) | |
| half ass | |
| immature(bare, deficient, incomplete, inexact, wanting) | |
| imprecise(wrong, false, vague, unclear, broken) | |
| in arrear(expression, idiom, incompleteness) | |
| in default(expression, idiom, incompleteness) | |
| in short supply(expression, idiom) | |
| incapable(poor, inadequate, insufficient, deficient, scarce) | |
| inefficient | |
| inoperative(adjective, broken, ineffectual) | |
| low-grade | |
| malfunctioning | |
| miscalculated(adjective, erroneous) | |
| missing(adjective, poor, short, inadequate, deficient) | |
| natural |
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| APA | Smart Define. (2016). defective thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/defective/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "defective thesaurus" https://smartdefine.org/defective/thesaurus/synonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2016, defective thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/defective/thesaurus/synonyms>. |
| MLA | Smart Define. "defective thesaurus" 24 March 2016. Web. 24 September 2026. <https://smartdefine.org/defective/thesaurus/synonyms> |