sicken /ˈsɪkən/ verb7 •To make ill.The infection will sicken him until amputation is needed. •To fill with disgust or abhorrence.His arrogant behaviour sickens me. •To be filled with disgust or abhorrence.Mine eyes did sicken at the sight. — 1607 •To become ill.I will sicken if I don’t get some more exercise. •To become weak; to decay; to languish.All pleasures sicken, and all glories sink. — 1734 •To become disgusting or tedious.The toiling pleasure sickens into pain. — 1770 •To lower the standing of.Whenever I get booed by opposition fans it only makes me more determined to sicken them. — 2007 formssickened · sickening · sickeneth · sickens · sickenest