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

Seven residents and two cats were reportedly living in the home and are now displaced because it is considered unsafe to live in, according to a poster on the door. — Ana Maria Soler, CBS News, 22 Aug. 2026

Independent researchers recently examined Roblox chat moderation and found examples of unsafe messages that made it through the platform's existing safeguards. — Kurt Knutsson, FOXNews.com, 21 Aug. 2026

The type of homicides that people fear the most and make a community unsafe are random ones like a drive-by shooting at a park, Stahl said. — Sofia Saric, Miami Herald, 21 Aug. 2026

But although nearly half the region’s population is under age 18, its cities are often unfriendly places to grow up – crowded, poorly planned, and unsafe. — Ryan Lenora Brown, Christian Science Monitor, 20 Aug. 2026