brooding

Noun
  1. Sitting on eggs so as to hatch them by the warmth of the body (synset 113462985)
  2. Persistent morbid meditation on a problem (synset 107548995)
Adjective
  1. Deeply or seriously thoughtful (synset 302428209)
    "Byron lives on not only in his poetry, but also in his creation of the `Byronic hero' - the persona of a brooding melancholy young man"

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