1. feeling as a person does when he is well and having a good time; glad; contented: »
She is happy in her new home.
SYNONYM(S): joyous, joyful, gay, cheerful, elated, rapturous, exultant, delighted, gratified. See syn. under glad. (Cf. ↑glad)2. showing that one is glad; showing pleasure and joy: »
a happy smile, a happy look.
SYNONYM(S): joyous, joyful, gay, cheerful, elated, rapturous, exultant, delighted, gratified. See syn. under glad. (Cf. ↑glad)3. pleased: »
I am happy to accept your invitation.
4. lucky; fortunate: »
By a happy chance, I found my lost book.
SYNONYM(S): favorable, propitious, auspicious.5. clever and fitting; successful and suitable; apt: »
The writer has a happy way of expressing his ideas.
SYNONYM(S): appropriate, felicitous.╂[Middle English happy < hap1]
Useful english dictionary. 2012.