Noun

• S: (n) relaxation, loosening, slackening (an occurrence of control or strength weakening) "the relaxation of requirements"; "the loosening of his grip"; "the slackening of the wind"

Verb

• S: (v) slow, slow down, slow up, slack, slacken (become slow or slower) "Production slowed"
• S: (v) slack, slacken, slack up, relax (make less active or fast) "He slackened his pace as he got tired"; "Don't relax your efforts now"
• S: (v) slacken (become looser or slack) "the rope slackened"
• direct hypernym / inherited hypernym / sister term
• S: (v) weaken (become weaker) "The prisoner's resistance weakened after seven days"
• S: (v) attenuate (become weaker, in strength, value, or magnitude)
• S: (v) melt, disappear, evaporate (become less intense and fade away gradually) "her resistance melted under his charm"; "her hopes evaporated after years of waiting for her fiance"
• S: (v) die down (become progressively weaker) "the laughter died down"
• S: (v) collapse (lose significance, effectiveness, or value) "The school system is collapsing"; "The stock market collapsed"
• S: (v) fade, melt (become less clearly visible or distinguishable; disappear gradually or seemingly) "The scene begins to fade"; "The tree trunks are melting into the forest at dusk"
• S: (v) subside, lessen (wear off or die down) "The pain subsided"
• S: (v) blur, dim, slur (become vague or indistinct) "The distinction between the two theories blurred"
• S: (v) pine away, waste, languish (lose vigor, health, or flesh, as through grief) "After her husband died, she just pined away"
• S: (v) dull (make less lively or vigorous) "Middle age dulled her appetite for travel"
• S: (v) pall (lose strength or effectiveness; become or appear boring, insipid, or tiresome (to)) "the course palled on her"
• S: (v) loosen, relax, loose (become loose or looser or less tight) "The noose loosened"; "the rope relaxed"
• S: (v) slacken (become looser or slack) "the rope slackened"
• S: (v) slow, slow down, slow up, slack, slacken (become slow or slower) "Production slowed"
• S: (v) wilt (lose strength) "My opponent was wilting"
• phrasal verb
• sentence frame
• S: (v) slacken, remit (make slack as by lessening tension or firmness)
• direct troponym / full troponym
• direct hypernym / inherited hypernym / sister term
• cause
• S: (v) slacken (become looser or slack) "the rope slackened"
• derivationally related form
• sentence frame