Synonyms of unsafe

unsafe

adjective

ˌən-ˈsāf 

1

as in dangerous

involving potential loss or injury

workers are forbidden from engaging in unsafe activities on company time

Synonyms & Similar Words

• dangerous
• hazardous
• risky
• perilous
• serious
• precarious
• treacherous
• unhealthy
• threatening
• menacing
• grave
• venturesome
• grievous
• random
• parlous
• jeopardizing
• uncertain
• harmful
• fatal
• destructive
• detrimental
• unpleasant
• insecure
• bad
• adverse
• haphazard
• sickening
• lethal
• ugly
• deadly
• injurious
• dicey
• chance
• ultrahazardous
• distressing
• murderous
• fell
• nasty
• pernicious
• deleterious
• malignant
• hurtful
• evil
• noxious
• wicked
• killer
• ill
• baneful
• inimical
• dire
• fateful
• mortal
• baleful
• pestilent
• deathly

Antonyms & Near Antonyms

• safe
• harmless
• innocuous
• innocent
• nonhazardous
• nonthreatening
• beneficial
• good
• advantageous
• unthreatening
• ultrasafe

2

as in careless

not paying or showing close attention especially for the purpose of avoiding trouble

people who have a record of being unsafe drivers usually have to pay higher insurance premiums

Synonyms & Similar Words

• careless
• reckless
• regardless
• heedless
• unguarded
• mindless
• incautious
• negligent
• unwary
• rash
• inattentive
• impetuous
• thoughtless
• imprudent
• forgetful
• inconsiderate
• neglectful
• unmindful
• injudicious
• slipshod
• lax
• inadvertent
• bold
• unplanned
• indiscreet
• unintentional
• blithe
• remiss
• absentminded

Antonyms & Near Antonyms

• safe
• cautious
• wary
• alert
• circumspect
• guarded
• vigilant
• watchful
• heedful
• attentive
• observant
• chary
• provident
• gingerly
• shrewd
• foresighted
• calculating
• scheming
• thoughtful
• considerate
• forethoughtful
• ultracareful
• ultracautious

Example Sentences

Recent Examples of unsafe

His articles argued that migrant laborers were essential to California agriculture yet often faced hostility, poverty and unsafe living conditions. — James Ward, USA Today, 10 July 2026

The inspector also noted several repeat violations, including dirty floors, food held at an unsafe temperature, and beans and meat stored without date markings. — Harriet Ramos, Fort Worth Star-Telegram, 9 July 2026

Christina said that Faye is now losing the use of her legs due to her EDMD and that their house is unsafe for her. — Gina Kalsi, PEOPLE, 9 July 2026

Consuming watermelon may be unsafe for people with diabetes, digestive issues, or oral allergy syndrome. — Cynthia Sass, Health, 9 July 2026