114 entries under deficiency topic. ×

6
instability(noun, break, change, end, cause)
6
lack(noun, stop, break, trouble, end)
6
proneness(noun, nature, movement, style, feeling)
6
prostration(noun, difficulty, collapse, fault, failing)
6
senility(noun, difficulty, fault, failing, flaw)
6
weak spot(noun, expression, area, fancy, catch)
5
gap(noun, difficulty, fault, failing, blemish)
5
inability(noun, skill, failure, need, lack)
5
incapacity(noun, skill, failure, lack, failing)
5
incompetence(noun, skill, failure, lack, failing)
5
susceptibility(noun, nature, movement, style, feeling)
5
want(noun, charge, right, desire, use)
4
impairment(noun, stop, hurt, disorder, block)
4
inefficacy(noun, informal, skill, failure, lack)
4
taint(noun, crack, fault, failing, blemish)
3
Achilles heel(noun, expression, point, difficulty, fault)
3
ailment(noun, disorder, fault, illness, failing)
3
blot(noun, crack, fault, blemish, flaw)
3
bug(noun, crack, fault, illness, lack)
3
demerit(noun, difficulty, lack, failing, flaw)
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APASmart Define. (2016). weakness thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/weakness/thesaurus/synonyms
ChicagoSmart Define. 2016. "weakness thesaurus" https://smartdefine.org/weakness/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, weakness thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/weakness/thesaurus/synonyms>.
MLASmart Define. "weakness thesaurus" 25 February 2016. Web. 25 September 2026. <https://smartdefine.org/weakness/thesaurus/synonyms>