laborious

Marked by or requiring long, hard work.

Hard-working; industrious.

Requiring much labor, exertion, or perseverance; toilsome; not easy: as, laborious duties; a laborious undertaking.

Using exertion; practising labor; diligent in work or service; assiduous: as, a laborious husbandman or mechanic; a laborious minister or pastor.

Characterized by labor or effort; marked by or manifesting labor.

Synonyms Difficult arduous, wearisome, fatiguing, onerous.

Industrious, painstaking, active, hard-working.

Requiring labor, perseverance, or sacrifices; toilsome; tiresome.

Devoted to labor; diligent; industrious.

Requiring much physical effort; toilsome.