|n.||1.||The state or quality of being pleasant.|
|Noun||1.||pleasantness - the feeling caused by agreeable stimuli; one pole of a continuum of states of feeling|
unpleasantness - the feeling caused by disagreeable stimuli; one pole of a continuum of states of feeling
|2.||pleasantness - the quality of giving pleasure; "he was charmed by the sweetness of her manner"; "the pleasantness of a cool breeze on a hot summer day"|
unpleasantness - the quality of giving displeasure; "the recent unpleasantness of the weather"