unopposed

adjective

un·​op·​posed ˌən-ə-ˈpōzd 

1

: not opposed

an unopposed invasion

: having no opponent

a politician who is running for election unopposed

2

medical : being or relating to estrogen replacement therapy in which a progestin (such as medroxyprogesterone acetate) is not coadministered to reduce the potential risks (such as endometrial cancer) associated with estrogen used alone

A woman who has had her uterus removed can take the estrogen "unopposed"—that is, without the addition of progestin.

—Consumer Reports

Examples of unopposed in a Sentence

Recent Examples on the Web

Candidates for public office, including mayor, City Council, and public school boards, often run unopposed in elections after receiving a Caucus endorsement. —Daniel I. Dorfman, Chicago Tribune, 27 Jan. 2026

But China and Russia aren’t moving unopposed. —Christian Datoc, The Washington Examiner, 19 Jan. 2026

All three leaders ran unopposed. —Katie Kilkenny, HollywoodReporter, 6 Jan. 2026

In an unopposed race, the storyboard artist and writer was elected head of IATSE Local 839 in early November last year. —Dominic Patten, Deadline, 6 Jan. 2026

Word History

First Known Use

1625, in the meaning defined at sense 1

Rhymes for unopposed

• misdiagnosed
• overexposed
• superimposed
• undecomposed
• apposed
• bulldozed
• composed
• deposed
• disclosed
• disposed
• enclosed
• exposed

Medical Definition

unopposed

adjective

un·​op·​posed -ə-ˈpōzd 

: being or relating to estrogen replacement therapy in which a progestin (as medroxyprogesterone acetate) is not coadministered to reduce the potential risks (as endometrial cancer) associated with estrogen used alone