Straggler

n.	1.	One who straggles, or departs from the direct or proper course, or from the company to which he belongs; one who falls behind the rest; one who rambles without any settled direction.
	2.	A roving vagabond.
	3.	Something that shoots, or spreads out, beyond the rest, or too far; an exuberant growth. Let thy hand supply the pruning knife, And crop luxuriant stragglers. - Dryden.
	4.	Something that stands alone or by itself.

Noun

1.

straggler - someone who strays or falls behind Synonyms: strayer

dawdler, depart, digress, drone, laggard, lagger, sidetrack, straggle, strayer, trailer