mess about vs mill around

mess about and mill around both are verbs.

Word	Noun	Adjective	Verb	Adverb
mess about	No	No	Yes	No
mill around	No	No	Yes	No

As verbs, mess about and mill around are synonyms defined as:

mess about and mill around: be about a place without any apparent purpose

Other synonyms of mess about include footle, hang around, lallygag, linger, loaf, loiter, lollygag, lounge, lurk, mill about, tarry.

mess about (verb)	mill around (verb)
be about a place without any apparent purpose	move about in a confused manner
	be about a place without any apparent purpose