| unprofessional | |
| unqualified(adjective, poor, thin, small, inadequate) | |
| amateurish | |
| ancillary | |
| awkward(adjective, arouse bad emotions) | |
| bastard | |
| below the mark(expression, idiom) | |
| better | |
| bush | |
| bush-league | |
| cheesy(adjective, rough, poor, low, awful) | |
| conversational | |
| cruddy(adjective, rough, poor, awful, common) | |
| crude(adjective, weak, poor, miserable, inferior) | |
| despicable | |
| diminutive(adjective, weak, poor, miserable, inferior) | |
| discreditable | |
| disreputable | |
| dissatisfactory | |
| dwarfed(adjective, weak, poor, miserable, inferior) |
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| APA | Smart Define. (2016). substandard thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/substandard/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "substandard thesaurus" https://smartdefine.org/substandard/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2016, substandard thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/substandard/thesaurus/synonyms>. |
| MLA | Smart Define. "substandard thesaurus" 29 March 2016. Web. 23 September 2026. <https://smartdefine.org/substandard/thesaurus/synonyms> |