unhappy -
experiencing or marked by or causing sadness or sorrow or discontent; "unhappy over her departure"; "unhappy with her raise"; "after the argument they lapsed into an unhappy silence"; "had an unhappy time at school"; "the unhappy (or sad) news"; "he looks so sad"
happy well expressed and to the point; "a happy turn of phrase"; "a few well-chosen words"
dejected affected or marked by low spirits; "is dejected but trying to look cheerful"
discontent,
discontented showing or experiencing dissatisfaction or restless longing; "saw many discontent faces in the room"; "was discontented with his position"
infelicitous not appropriate in application; defective; "an infelicitous remark"; "infelicitous phrasing"; "the infelicitous typesetting was due to illegible copy"
joyless not experiencing or inspiring joy; "a joyless man"; "a joyless occasion"; "joyless evenings"
sad experiencing or showing sorrow or unhappiness; "feeling sad because his dog had died"; "Better by far that you should forget and smile / Than that you should remember and be sad"- Christina Rossetti
sorrowful experiencing or marked by or expressing sorrow especially that associated with irreparable loss; "sorrowful widows"; "a sorrowful tale of death and despair"; "sorrowful news"; "even in laughter the heart is sorrowful"- Proverbs 14:13
cheerless,
depressing,
uncheerful causing sad feelings of gloom and inadequacy; "the economic outlook is depressing"; "something cheerless about the room"; "a moody and uncheerful person"; "an uncheerful place"
felicity,
happiness pleasing and appropriate manner or style (especially manner or style of expression)
happiness emotions experienced when in a state of well-being
lovesick languishing because of love; "strong men behaving like lovesick boys"
dejected affected or marked by low spirits; "is dejected but trying to look cheerful"
unhappy experiencing or marked by or causing sadness or sorrow or discontent; "unhappy over her departure"; "unhappy with her raise"; "after the argument they lapsed into an unhappy silence"; "had an unhappy time at school"; "the unhappy (or sad) news"; "he looks so sad"
Unhappy -
marked by or producing unhappiness; "infelicitous circumstances"; "unhappy caravans, straggling afoot through swamps and canebrakes"- American Guide Series
