1 a needing much effort or skill. b troublesome, perplexing.
2 (of a person): a not easy to please or satisfy. b uncooperative, troublesome.
3 characterized by hardships or problems (a difficult period in his life).
Derivatives:
difficultly adv. difficultness n.
Etymology: ME, back-form. f. DIFFICULTY
Useful english dictionary. 2012.