Antonyms of noun weakening

2 senses of weakening

Sense 1
weakening -- (becoming weaker)
       Antonym of strengthening (Sense 1)
      => strengthening -- (becoming stronger)

Sense 2
weakening -- (the act of reducing the strength of something)
       Antonym of strengthening (Sense 2)
      => strengthening -- (the act of increasing the strength of something)

Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun weakening

2 senses of weakening

Sense 1
weakening -- (becoming weaker)
       => transformation, transmutation, shift -- (a qualitative change)

Sense 2
weakening -- (the act of reducing the strength of something)
       => decrease, diminution, reduction, step-down -- (the act of decreasing or reducing something)

Antonyms of verb weaken

2 of 5 senses of weaken

Sense 1
weaken -- (lessen the strength of; "The fever weakened his body")
       Antonym of strengthen (Sense 1)
      => strengthen, beef up, fortify -- (make strong or stronger; "This exercise will strengthen your upper body"; "strengthen the relations between the two countries")

Sense 2
weaken -- (become weaker; "The prisoner's resistance weakened after seven days")
       Antonym of strengthen (Sense 2)
      => strengthen -- (gain strength; "His body strengthened")

Synonyms/Hypernyms (Ordered by Estimated Frequency) of verb weaken

5 senses of weaken

Sense 1
weaken -- (lessen the strength of; "The fever weakened his body")
       => change, alter, modify -- (cause to change; make different; cause a transformation; "The advent of the automobile may have altered the growth pattern of the city"; "The discussion has changed my thinking about the issue")

Sense 2
weaken -- (become weaker; "The prisoner's resistance weakened after seven days")
       => decrease, diminish, lessen, fall -- (decrease in size, extent, or range; "The amount of homework decreased towards the end of the semester"; "The cabin pressure fell dramatically"; "her weight fell to under a hundred pounds"; "his voice fell to a whisper")

Sense 3
sabotage, undermine, countermine, counteract, subvert, weaken -- (destroy property or hinder normal operations; "The Resistance sabotaged railroad operations during the war")
       => disobey -- (refuse to go along with; refuse to follow; be disobedient; "He disobeyed his supervisor and was fired")

Sense 4
de-escalate, weaken, step down -- (reduce the level or intensity or size or scope of; "de-escalate a crisis")
       => decrease, lessen, minify -- (make smaller; "He decreased his staff")

Sense 5
dampen, damp, soften, weaken, break -- (lessen in force or effect; "soften a shock"; "break a fall")
       => deaden, blunt -- (make less lively, intense, or vigorous; impair in vigor, force, activity, or sensation; "Terror blunted her feelings"; "deaden a sound")

Antonyms of adj weakening

2 senses of weakening

Sense 1
debilitative, enervating, enfeebling, weakening -- (causing debilitation)

INDIRECT (VIA debilitating) -> invigorating -- (imparting strength and vitality; "the invigorating mountain air")

Sense 2
weakening -- (moderating by making pain or sorrow weaker)

INDIRECT (VIA moderating) -> intensifying -- (increasing in strength or intensity)

Similarity of adj weakening

2 senses of weakening

Sense 1
debilitative, enervating, enfeebling, weakening -- (causing debilitation)
       => debilitating (vs. invigorating) -- (impairing the strength and vitality)

Sense 2
weakening -- (moderating by making pain or sorrow weaker)
       => moderating (vs. intensifying) -- (lessening in intensity or strength)