Laboring

a.	1.	That labors; performing labor; esp., performing coarse, heavy work, not requiring skill also, set apart for labor; as, laboring days. The sleep of a laboring man is sweet. - Eccl. v. 12.
	2.	Suffering pain or grief. Laboring oar the oar which requires most strength and exertion; often used figuratively; as, to have, or pull, the laboring oar in some difficult undertaking.

Adj.

1.

laboring - doing arduous or unpleasant work; "drudging peasants"; "the bent backs of laboring slaves picking cotton"; "toiling coal miners in the black deeps" Synonyms: drudging, labouring, toiling

busy, drudging, labouring, toiling