cheerful

At the Daiichi plant, the reactors were housed in six square buildings that had been painted a cheerful baby blue.

That abomination pops out of an unsettlingly cheerful woman whose husband swoops in to offer the hitchhiking boy a ride.

That those infected are compulsively helpful and blandly cheerful, like cult members asking you to “a party,” is no less, if not more, disturbing.

Ordinarily, the Dawn Truce was a cheerful occasion, but on this day they had very serious matters to discuss.

Despite being seen "as quite a cheerful man" by some, "he is a man who has been very alone -- very much torn between his family and Franco since his earliest childhood."