- Definitions|2
- Thesaurus|928
- Abbreviations|0
| indecisive(adjective, cowardly) | |
| infirm | |
| insect(noun, nature, animal, creature, fauna) | |
| irresolute(adjective, cowardly) | |
| marsupial(noun, animal) | |
| rodent(noun, animal) | |
| ruminant(noun, animal) | |
| vermin(noun, animal) | |
| weak-kneed | |
| weak sister(noun, expression, idiom, group) | |
| weakling | |
| biped | |
| bird(noun, animal) | |
| cannibal | |
| chicken liver(expression, chicken, coward, weakling, quitter) | |
| crustacean(noun, shrimp) | |
| crybaby | |
| doormat | |
| fish(noun, animal) | |
| fraidy-cat(chicken, coward, weakling, quitter, faint-of-heart) |
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| APA | Smart Define. (2015). invertebrate thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/invertebrate/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "invertebrate thesaurus" https://smartdefine.org/invertebrate/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2015, invertebrate thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/invertebrate/thesaurus/synonyms>. |
| MLA | Smart Define. "invertebrate thesaurus" 14 April 2015. Web. 27 September 2026. <https://smartdefine.org/invertebrate/thesaurus/synonyms> |