Heathcliff is the morose and vengful protagonist in Emily Bronte's novel Wuthering Heights. It is not fair to call him a morose person just because he was depressed when you met him. (Adj.) having...
His boss was a morose person.
Bob invented a transportation device to weasel out of trouble when his parents would catch him smoking weed.
He acted morose.
Sam sat alone, looking morose