Unwell

Adjective

 * 1) Not well; indisposed; not in good health; somewhat ill; ailing.
 * 2) Specifically, ill from menstruation; affected with, or having, catamenial; menstruant.

Synonyms

 * See also Thesaurus:diseased

Thesaurus
ailing, bad, below par, critically ill, donsie, down, faint, faintish, feeble, feeling awful, feeling faint, feeling something terrible, frail, ill, in danger, indisposed, infirm, laid low, low, mean, mortally ill, not quite right, off-color, offish, out of sorts, poorly, qualmish, queasy, rocky, seedy, shaky, sick, sick unto death, sickish, sickly, squeamish, taken ill, under the weather, weakly, wobbly

Etymology
From.