3
mammal(noun, type, species, classification)
3
land
2
terrestrial
1
amphibious
-2
aves(noun, type, species, classification)
-2
cnidarians(noun, type, species, classification)
-3
birds(noun, type, species, classification)
-3
molluscs(noun, type, species, classification)
-3
arthropods(noun, type, species, classification)
-3
flatworms(noun, type, species, classification)
-3
sponges(noun, type, species, classification)
-3
ctenophores(noun, type, species, classification)
-3
fish(noun, type, species, classification)
-4
mammalian(noun, type, species, classification)
-4
annelids(noun, type, species, classification)
-4
invertebrates(noun, type, species, classification)
-4
nematodes(noun, type, species, classification)
-4
bird(noun, type, species, classification)
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APASmart Define. (2015). amphibian thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/amphibian/thesaurus/antonyms
ChicagoSmart Define. 2015. "amphibian thesaurus" https://smartdefine.org/amphibian/thesaurus/antonyms (accessed September 28, 2026).
HarvardSmart Define 2015, amphibian thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/amphibian/thesaurus/antonyms>.
MLASmart Define. "amphibian thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/amphibian/thesaurus/antonyms>