weaken

1. Lessen the strength of (synset 200225327)
   "The fever weakened his body"
   causes: weaken - become weaker
   is a type of: alter, change, modify - cause to change; make different; cause a transformation
   subtypes:

   • de-energise, de-energize - deprive of energy
   • break - weaken or destroy in spirit or body
   • devitalise, devitalize - sap of life or energy
   • shake - undermine or cause to waver
   • depress - lessen the activity or force of
   • unbrace - remove a brace or braces from
   • etiolate - make weak by stunting the growth or development of
   • cripple, stultify - deprive of strength or efficiency; make useless or worthless
   • cut, dilute, reduce, thin, thin out - lessen the strength or flavor of a solution or mixture
   • attenuate, rarefy - weaken the consistency of (a chemical substance)
   • blunt - make less intense
   • moderate, mollify, season, temper - make more temperate, acceptable, or suitable by adding something else
   • debilitate, drain, enfeeble - make weak
   • enervate - weaken mentally or morally
   • dampen - reduce the amplitude (of oscillations or waves)
   • negate, neutralise, neutralize, nullify - make ineffective by counterbalancing the effect of
   • castrate, emasculate - deprive of strength or vigor
   • wash out - deplete of strength or vitality
2. Become weaker (synset 200223926)
   "The prisoner's resistance weakened after seven days"
   is a type of: decrease, diminish, fall, lessen - decrease in size, extent, or range
   subtypes:

   • attenuate - become weaker, in strength, value, or magnitude
   • disappear, evaporate, melt - become less intense and fade away gradually
   • die down - become progressively weaker
   • collapse - lose significance, effectiveness, or value
   • fade, melt - become less clearly visible or distinguishable; disappear gradually or seemingly
   • lessen, subside - wear off or die down
   • blur, dim, slur - become vague or indistinct
   • languish, pine away, waste - lose vigor, health, or flesh, as through grief
   • dull - make less lively or vigorous
   • pall - lose strength or effectiveness; become or appear boring, insipid, or tiresome (to)
   • loose, loosen, relax - become loose or looser or less tight
   • slacken - become looser or slack
   • slack, slacken, slow, slow down, slow up - become slow or slower
   • wilt - lose strength
3. Destroy property or hinder normal operations (synset 202549304)
   "The Resistance sabotaged railroad operations during the war"
   is a type of: disobey - refuse to go along with; refuse to follow; be disobedient
   subtypes: derail - cause to run off the tracks
   same as: counteract, countermine, sabotage, subvert, undermine
4. Reduce the level or intensity or size or scope of (synset 200291502)
   "de-escalate a crisis"
   is a type of: decrease, lessen, minify - make smaller
   same as: de-escalate, step down
5. Lessen in force or effect (synset 200390886)
   "soften a shock"; "break a fall"
   is a type of: blunt, deaden - make less lively, intense, or vigorous; impair in vigor, force, activity, or sensation
   subtypes:

   • deafen - make soundproof
   • damp, dampen, deaden - make vague or obscure or make (an image) less visible
   same as: break, damp, dampen, soften

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