Difficult

a. [Lat. difficilis, difficul; It. difficultoso, difficultoso, Sp. difficultoso.]

1. Hard to make, do, or perform; requiring labor and pains to accomplish; not easy; arduous; as, a difficult task, work, &c.
2. Hard to deal with; occasioning labor or pains; beset with difficulty, as a passage in an author, a bill, a song, &c.
3. Not easily wrought upon; not compliant or complaisant; unaccommodating; austere; incredulous. “Extremely difficult of miracles.” Evelyn.

Syn. — Arduous; painful; crabbed; perplexed; laborious; unaccommodating; austere; rigid. See ARDUOUS.