weaken vs soften

weaken and soften both are verbs.

Word	Noun	Adjective	Verb	Adverb
weaken	No	No	Yes	No
soften	No	No	Yes	No

As verbs, weaken and soften are synonyms defined as:

Other synonyms of weaken include break, damp, dampen.

weaken (verb)	soften (verb)
become weaker	become soft or softer
lessen the strength of	make soft or softer
reduce the level or intensity or size or scope of	lessen in force or effect
lessen in force or effect	make less severe or harsh
destroy property or hinder normal operations	protect from impact
	make (images or sounds) soft or softer
	give in, as to influence or pressure