strength Antonyms

inefficacy rustiness sacrum sclerosis senectitude senescence shakiness shortcoming sickness sleaziness subjection subtility symptom symptomatology syncope tabes tiredness unfirmness puniness prohibition pox infirmity infirmness insolidity instability insubstantiality invalidism lack lassitude laziness lethargy malady microbe morbidness overexcitement paraplegia pedestrianism pneumonia unhealth unproficiency eyestrain hydrops unsoundness ball and chain pressure point blind spot gremlin breakableness weak point lightheadedness