unsullenadj.
(un- prefix1 1.)
ΘΚΠ
the mind > emotion > calmness > [adjective] > not sullen
unsullen1605
1605 J. Marston Dutch Courtezan ii. i What harty gratefulnes, Unsulleine silence, unaffected modesty.
This entry has not yet been fully updated (first published 1926; most recently modified version published online June 2021).
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adj.1605