Meaning of “bliss” - Learner’s Dictionary

bliss

noun [ U ] uk us /blɪs/

complete happiness:

My idea of bliss is lying on a sunny beach.
blissful adjective

making you feel very happy:

a blissful childhood
blissfully adverb

She seemed blissfully unaware of the chaos she had caused.

(Definition of “bliss” from the Cambridge Learner’s Dictionary © Cambridge University Press)