boss around vs strong-arm

boss around is not an adjective while strong-arm is an adjective.

Word	Noun	Adjective	Verb	Adverb
boss around	No	No	Yes	No
strong-arm	No	Yes	Yes	No

As verbs, boss around and strong-arm are synonyms defined as:

Other synonyms of boss around include ballyrag, browbeat, bully, bullyrag, hector, push around.

boss around (adjective)	strong-arm (adjective)
	impelled by physical force especially against resistance