Gray, Thomas's "Where ignorance is pleasure, it is foolishness to be wise," says Thomas Gray in his poem Ode on a Distant Prospect at Eton College. We commonly hear the abbreviated phrase, "ignorance is bliss," which may be used as an excuse to be lazy with one's thinking and be happier. Complete contentment in paradise, experiencing eternal delight. The ecstasy of marital happiness, the bliss of a day at the spa. 2: heavenly, paradisical Antonyms and synonyms More Sentences as Examples Find out more about happiness.