diseased

adjective

dis·​eased di-ˈzēzd 

: affected with or as if with a disease : lacking health or soundness : sickly

During a transplant, the surgeon removes the diseased lung (sometimes both) and transplants a lung or lungs from a donor.

—Elaine K. Howley

Pruning is critical to blueberry productivity. An annual pruning regimen is needed to remove old and diseased canes, encourage strong new canes and increase the harvest.

—Sequim (Washington) Gazette

He said he occasionally has had to put an animal down if it is diseased or severely injured, but often works with animal rehabilitators to rescue others when possible.

—Sarah Bowman

Sirois believes that the confession from Hernandez, who has since pleaded not guilty, was the product of a diseased mind. Defense lawyers claim he's mentally ill, hears voices, and has rock-bottom intelligence.

—Andrea Peyser

Examples of diseased in a Sentence

Recent Examples on the Web

Teeth become diseased with decay and resorptive lesions and, when removed, these cats often lead much happier and more comfortable lives. —Dr. John De Jong, Boston Herald, 11 Jan. 2026

If your plants were plagued by pests or diseases during the growing season, leaving diseased plant debris in your garden allows problems to overwinter and reinfect your plants in spring. —Lauren Landers, Better Homes & Gardens, 11 Jan. 2026

Dead, brown, diseased, or broken branches can be removed in early winter before harsh weather sets in. —Lee Wallender, The Spruce, 10 Jan. 2026

Roberts doesn’t offer much empathy for the poor, diseased critter other than a pause when Ben momentarily ponders his reflection in a pool as Adrian Johnston’s eerie synth-piano score tinkles. —Amy Nicholson, Los Angeles Times, 9 Jan. 2026

Word History

First Known Use

15th century, in the meaning defined above

Rhymes for diseased

• appeased
• displeased
• breezed
• eased
• pleased
• seized
• sneezed
• squeezed
• teased
• wheezed