1
jittery(weak, shy, worried, afraid, apprehensive)
1
kowtowing(adjective, compliant, flattering, deferential, sycophantic)
1
lacking courage(expression, weak, gutless)
1
lame(adjective, poor, inferior, inadequate, limited)
1
languid
1
languorous
1
lax(adjective, weak, simple, gentle, forgiving)
1
limited(adjective, weak, poor, inferior, inadequate)
1
loose
1
lukewarm
1
lustless
1
manageable(adjective, quiet, weak, simple, gentle)
1
marrowless
1
mazy
1
meekest
1
mercurial
1
milk-livered
1
milquetoast(noun, quiet, gentle, nervous, humble)
1
moody
1
mousy(adjective, weak, nervous, shy, worried)
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APASmart Define. (2015). spineless thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/spineless/thesaurus/synonyms
ChicagoSmart Define. 2015. "spineless thesaurus" https://smartdefine.org/spineless/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, spineless thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/spineless/thesaurus/synonyms>.
MLASmart Define. "spineless thesaurus" 13 April 2015. Web. 22 September 2026. <https://smartdefine.org/spineless/thesaurus/synonyms>