sick with worry

== English == === Adjective === sick with worry (not comparable) (informal, idiomatic) Extremely anxious or distressed. ==== Related terms ==== === References === “sick with worry”, in Merriam-Webster.com Online Dictionary, Springfield, Mass.: Merriam-Webster, 1996–present. “sick with worry”, in OneLook Dictionary Search. “worried sick”, in Collins English Dictionary, 2011–present.