Definify.com
Webster 1913 Edition
Unwell
Un-well′
,Adj.
1.
Not well; indisposed; not in good health; somewhat ill; ailing.
2.
(Med.)
Specifically, ill from menstruation; affected with, or having, catamenial; menstruant.
☞ This word was formerly regarded as an Americanism, but is now in common use among all who speak the English language.
Webster 1828 Edition
Unwell
UNWELL'
,Adj.