Synonyms|290Antonyms|85|Broader|2Narrower|0Related|197
3
lesser(adjective, lower, importance, mediocre, substandard)
3
subordinate to
3
underground(adjective, secret, hidden, spy, covert)
2
covered(adverb, preposition, under, below)
2
downwards(adverb, lowness)
2
foundation(noun, base, ground, bottom, bed)
2
abapical
2
anterior
2
bad(adjective, lower, mediocre, substandard)
2
behind
2
downhill(adjective, adverb, inferior, depressed, declining)
2
foot(noun, bottom)
2
hole-and-corner(adjective, secret, hidden, spy, covert)
2
infra
2
second(lower, importance, mediocre, substandard, secondary)
2
secondary(adjective, lower, importance, mediocre, substandard)
2
stealthy(secret, hidden, spy, covert)
2
subjacent(adjective, lower, importance, inferior, depressed)
2
substructure(noun, base, foundation, ground, bed)
2
surreptitious(secret, hidden, spy, covert)
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APASmart Define. (2015). underneath thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/underneath/thesaurus/synonyms
ChicagoSmart Define. 2015. "underneath thesaurus" https://smartdefine.org/underneath/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, underneath thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/underneath/thesaurus/synonyms>.
MLASmart Define. "underneath thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/underneath/thesaurus/synonyms>