sicker

sick-er

adjective

Feeling more unwell, nauseous, or diseased than previously.

"She felt sicker after eating that."

Thesaurus

Synonyms: pale, pallid, wan, weak, sick, unbalanced, brainsick, disturbed, crazy, demented, unhinged, insane

Antonyms: keep down, well

sicker - Definition, Meaning & Examples | Voklex