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Synonyms

unsafe

American  
[uhn-sayf] / ʌnˈseɪf /

adjective

unsafer, unsafest
  1. not free of risk or danger; hazardous.


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

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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.

See Examples For:

If the world gets 1.5 C warmer than pre-industrial levels, 22 percent of people over 60 will be exposed to unsafe heat for at least a month every year worldwide, the researchers estimated.

From Barron's Aug. 17, 2026

A baby bank says parents are turning to "unsafe" practices such as watering down baby formula milk to save money.

From BBC Aug. 16, 2026

The healthcare focus includes investigations into marketing for unsafe products and services that deceive consumers, the memo added.

From The Wall Street Journal Aug. 14, 2026

There is no red banner telling me this particular bag is unsafe.

From Salon Aug. 14, 2026

And I began to hear his hoarse roaring, that aaonh cry as rich as gold or honey and as spine-chilling as the depths of an unsafe mine or a thou­sand angry bees.

From "Life of Pi" by Yann Martel

I knew I was on unsafe ground, but it proves far unsafer than I had thought.

From More Letters of Charles Darwin — Volume 1 by Sir Francis Darwin

In a word, tourism, especially in Charleston, erstwhile “Best City” in America, and north along the coast to Myrtle Beach — now among the unsafest places in the United States and, therefore, the world.

From Washington Post Jul. 10, 2020

It is generally agreed that the U. S. is one of the unsafest places in the civilized world to have a baby.

From Time Magazine Archive

Intense feeling is apt to build upon a half-truth—the unsafest of all foundations.

From Men in the Making by Ambrose Shepherd

Few and simple as these were, they were sufficient to furnish a safe conduct of life even through the unsafest days of the most unsettled period of our nation's history.

From Bushido, the Soul of Japan by Inazo Nitobe

She had been gone about an hour when a small telegraph boy appeared, and, after boarding the barge in the unsafest manner possible, handed him a telegram.

From Many Cargoes by W. W. (William Wymark) Jacobs

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