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Synonyms

unsafe

British  
/ ʌnˈseɪf /

adjective

  1. not safe; perilous

  2. (of a criminal conviction) based on inadequate or false evidence

"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.

“Of course any adverse event can be a flag,” said another former FDA official who worked in the compounding division when the peptides were categorized as unsafe.

From Salon • Apr. 4, 2026

A guest booked an apartment in New York for two and a half months but left early because she felt unsafe in the neighborhood.

From MarketWatch • Apr. 3, 2026

Kid-friendly dinosaur-shaped nuggets sold in Walmart stores may contain unsafe levels of lead, public health officials warn.

From Los Angeles Times • Apr. 2, 2026

“To put it bluntly,” Jackson continued, “the court could be ushering in an era of unprofessional and unsafe medical care administered by effectively unsupervised healthcare providers.”

From Slate • Mar. 31, 2026

It wasn’t heavy, yet it felt very unsafe in my hand.

From "Twilight" by Stephenie Meyer