For someone with such a sunny reputation as Barrymore, she is glad that people can see her summoning her sullen side.
Kristen Stewart was cast as Marylou at 17, before she played fair-skinned and often sullen Bella Swan in The Twilight series.
Everything worked out wonderfully, but I remained sort of sullen inside—I wanted to remain a Pennsylvania farm boy.
1570s, alteration of Middle English soleyn "unique, singular," from Anglo-French *solein, formed on the pattern of Old French soltain, from Old French soul "single" (see sole (n.2)). The sense shift in Middle English from "solitary" to "morose" occurred late 14c.