dif·fi·cult 
(dĭfĭ-kŭlt′, -kəlt)
(dĭfĭ-kŭlt′, -kəlt)adj.
1. Requiring considerable effort or skill; not easy to do or accomplish: "To entertain is far more difficult than to enlighten" (Anthony Burgess).
2. Not easy to endure; full of hardship or trouble; trying: fell upon difficult times.
3. Not easy to comprehend, solve, or explain: a difficult puzzle.
4. Not easy to please, satisfy, or manage: a difficult child.
5. Not easy to persuade or convince; stubborn.
[Middle English, back-formation from difficulte, difficulty; see DIFFICULTY.]
diffi·cult′ly adv.
- acoustoelectric
- acoustoelectrically
- acoustooptical
- acoustooptically
- acoustooptics
- ACP
- acpt.
- acquaint
- acquaintance
- acquaintance rape
- acquaintanceship
- acquainted
- acquiesce
- acquiescence
- acquiescent
- acquiescently
- acquirable
- acquire
- acquired
- acquired character
- acquired immune deficiency syndrome
- acquired immunity
- acquired taste
- acquirement
- acquirer