Antonyms of adj blissful

1 sense of blissful

Sense 1
blissful -- (completely happy and contented; "blissful young lovers"; "in blissful ignorance")

INDIRECT (VIA happy) -> 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")

Similarity of adj blissful

1 sense of blissful

Sense 1
blissful -- (completely happy and contented; "blissful young lovers"; "in blissful ignorance")
       => happy (vs. unhappy) -- (enjoying or showing or marked by joy or pleasure; "a happy smile"; "spent many happy days on the beach"; "a happy marriage")