adjective

unsafe

unsafe, dangerous

This old bridge is unsafe for cars.

This old bridge is unsafe for cars.

It's unsafe to walk alone here at night.

It's unsafe to walk alone here at night.

unsafe ((for sb./sth.)) ((to-inf)) dangerous for someone or something to do something It is unsafe for children to play on this street.

Synonyms: dangerous, hazardous; Antonyms: safe, secure

From the prefix 'un-' (not) + 'safe'. Literally means 'not safe'.

Think of the 'un-' prefix as a big 'NO' sign in front of the word 'safe'.

This page is designed for learning support. Please use it as a learning reference, not as a formal reference.