Peaky

Adjective

 * 1) Sickly; peaked.
 * 2) Characterised by peaks.

Thesaurus
acicular, acuminate, acute, ailing, ashen, cuspidate, drained, drawn, emaciated, feeble, gaunt, haggard, hollow-eyed, ill, infirm, pale, pallid, pasty, peaked, peaking, pinched, sallow, sharp, sick, sickly, unhealthy, unwell, unwholesome, wan, washed out, wasted, waxen, weak, whey-faced