Similar words: successfulness, blissful, blissfully, usefulness, awfulness, lawfulness, carefulness, sinfulness. Meaning: ['blɪsfʊlnɪs] 
n. a state of extreme happiness.
n. a state of extreme happiness. 
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1. Happiness is a feeling of contentment, fulfillment, joy, blissfulness and inner peace-the most sought-after emotional wealth in life. Dr T.P.Chia 
2. Some fools think of happiness, blissfulness, togetherness.
3. A sensation of blissfulness warmed me up all over.
4. Education is not bringing peace and silence and blissfulness to people.
5. Money or wealth gives a sense of security and happy sentiment, but not a long lasting contentment, blissfulness and inner peace. Dr T.P.Chia
6. Your degrees can befool people, may even befool yourself, but you cannot have the joy, the blissfulness , the peace, the silence, the compassion of a Gautam Buddha.
7. At that time, his life will overflow with significance and blissfulness.
More similar words: successfulness, blissful, blissfully, usefulness, awfulness, lawfulness, carefulness, sinfulness, joyfulness, youthfulness, forgetfulness, playfulness, restfulness, painfulness, hatefulness, harmfulness, fearfulness, forcefulness, hopefulness, willfulness, helpfulness, wistfulness, wakefulness, wastefulness, bashfulness, mindfulness, truthfulness, gratefulness, watchfulness, unlawfulness.