Pronunciation: (un-plez'unt-nis), [key]
1. the quality or state of being unpleasant.
2. something that is displeasing or offensive, as an experience, event, or situation: An unpleasantness made them ill-at-ease.
3. an unpleasant feeling or sensation caused by disagreeable or painful stimuli.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.