weaken
verb
lessen the strength of
“The fever weakened his body”
Oppositesstrengthenbecome weaker
“The prisoner's resistance weakened after seven days”
Oppositesstrengthendestroy property or hinder normal operations
“The Resistance sabotaged railroad operations during the war”
reduce the level or intensity or size or scope of
“de-escalate a crisis”
lessen in force or effect
“soften a shock”
“break a fall”
Source: WordNet 3.1, Princeton University
