restrain vs encumber

restrain and encumber both are verbs.

Word	Noun	Adjective	Verb	Adverb
restrain	No	No	Yes	No
encumber	No	No	Yes	No

As verbs, restrain and encumber are synonyms defined as:

restrain and encumber: restrict (someone or something) so as to make free movement difficult

Other synonyms of restrain include cumber.

restrain (verb)	encumber (verb)
prevent the action or expression of	restrict (someone or something) so as to make free movement difficult
to close within bounds, or otherwise limit or deprive of free movement
restrict (someone or something) so as to make free movement difficult
prevent (someone or something) from doing something