D defs.my
Entry 2 senses Webster, 1913

Unwell

/ən-wĕl'/ · Un·well · IPA /ʌnˈwɛl/
01 a. Not well; indisposed; not in good health; somewhat ill; ailing.
  1. 1.
    Not well; indisposed; not in good health; somewhat ill; ailing.
  2. 2.
    Specifically, ill from menstruation; affected with, or having, catamenial; menstruant.(Med.)