She walked contentedly through the park.

The children ate their candies contentedly.

Contentedly, I answered the question.

Contentedly is an adverb. Adverbs can modify verbs, other adverbs, and adjectives. When you use it in a sentence, it will necessarily be used to describe something. An example of the use of contentedly in a sentence: The mother watched contentedly as her children slept peacefully. In this example, contentedly describes how she watched her children.

dementedly

The child sat contentedly playing his game with a big smile on his face.

Happily or blissfully.