unprotected sex

British

noun

an act of sexual intercourse or sodomy performed without the use of a condom, thus involving the risk of sexually transmitted diseases

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Plan B can help prevent pregnancy when used within five days of unprotected sex.

From Slate • Feb. 18, 2024

The pills - NorLevo and the generic version levonorgestrel - work best within 72 hours after unprotected sex and have an efficacy rate of 80%.

From BBC • Nov. 28, 2023

Scientists tracked 836 women at a Hong Kong clinic between 2018 and 2022 who had unprotected sex and requested emergency contraception within three days.

From Seattle Times • Aug. 16, 2023

The commonly used over-the-counter drug contains the synthetic hormone, progestin, which can prevent pregnancy if taken as soon as possible after having unprotected sex.

From Washington Post • Apr. 21, 2023

The drugs, often called the morning-after pill, can prevent pregnancy if taken after unprotected sex.

From The Verge • Jun. 28, 2022

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023