Unsafe

//ʌnˈseɪf// adj, verb

adj, verb ·Moderate ·College level

Definitions

Verb
  1. 1
    To remove the safety from (a weapon). transitive
Adjective
  1. 1
    Not safe (various senses); dangerous.

    "For much the same reasons that safe languages are preferred over unsafe languages, these powerful---but unsafe---capabilities in Java should be restricted."

Adjective
  1. 1
    involving or causing danger or risk; liable to hurt or harm wordnet
  2. 2
    lacking in security or safety wordnet
  3. 3
    not safe from attack wordnet

Synonyms

All synonyms
dangerousinsecureadventuresomeadventurousdangerousdoubtful

Example

More examples

"This company sold unsafe products."

Etymology

Etymology 1

From un- (not) + safe.

Etymology 2

From un- (reversive prefix) + safe.

Related phrases

memory-unsafeunsafe sex

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.