Synonyms of sickest

1 Syllable

green, mean, ill, frail, down, weak

2 Syllables

ailing, lousy, rotten, laid-up, qualmish, unwell, wobbly, rocky, feeble, poorly, peaked, queasy, infirm, funny

3 Syllables

declining, diseased, nauseated, invalid, feverish, rickety, tottering, imperfect, impaired, bedridden, infected, unhealthy, confined, suffering

4 Syllables

incurable, defective, disordered, delicate, indisposed

5 Syllables

hospitalized, debilitated