Synonyms of weakness in English:

weakness


See definition of weakness

noun

1‘his illness resulted in weakness for the rest of his life’

SYNONYMS
frailty, feebleness, enfeeblement, puniness, fragility, delicateness, delicacy, weakliness
infirmity, sickness, sickliness, shakiness, debility, incapacity, indisposition, decrepitude, enervation, fatigue, exhaustion, tiredness
informal weediness
ANTONYMS

strength, vigour

2‘he has worked on his weaknesses and his form has improved’

SYNONYMS
fault, flaw, defect, deficiency, weak point, weak spot, failing, foible, shortcoming, imperfection, blemish, Achilles heel, chink in one's armour
ANTONYMS

strength, forte

3‘he had a weakness for champagne’

SYNONYMS
fondness, liking, love, passion, partiality, preference, penchant, soft spot, bent, predisposition, predilection, leaning, inclination, proneness, proclivity, disposition, taste, eye
relish, zeal, enthusiasm, appetite
ANTONYMS

dislike

4‘the President's public changes of mind led to accusations of indecision and weakness’

SYNONYMS
spinelessness, timidity, cravenness, cowardliness, pusillanimity, timorousness, indecisiveness, indecision, irresolution, ineffectuality, uselessness, ineptness, ineptitude, effeteness, meekness, tameness, powerlessness, ineffectiveness, impotence, faint-heartedness
informal chicken-heartedness
ANTONYMS

strength, resolve

5‘the symptoms include weakness of the eyes’

SYNONYMS
inadequacy, defectiveness, faultiness, deficiency, imperfection
ANTONYMS

strength, power

6‘the weakness of this argument was soon shown up’

SYNONYMS
unconvincingness, untenability, tenuousness, implausibility, unsatisfactoriness, slightness, poverty, inadequacy, thinness, transparency
unsoundness, flimsiness, lameness, hollowness
ANTONYMS

strength

7‘the weakness of the sound’

SYNONYMS
indistinctness, muffledness, mutedness, faintness, lowness, low intensity
dimness, paleness, wanness, dullness, feebleness
ANTONYMS

strength