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

The audit found that unsafe products had remained on the market for as long as three years before the Marijuana Enforcement Division issued a public warning. — Christopher Osher, ProPublica, 21 Oct. 2026

The Bucky Dent Water Park reopening was followed days later by the Florida Department of Health’s closure of three pools after an inspection prompted by a complaint about unsafe conditions revealed 34 violations. — Verónica Egui Brito, Miami Herald, 21 Oct. 2026

Tenants had been involved in a years long dispute with multiple landlords over unsafe living conditions. — Chris Higgins, Kansas City Star, 20 Oct. 2026

Predicted in the 1970s by NASA physicist Donald Kessler, this chain of orbital smashups could make the space around Earth unusable and unsafe. — Tereza Pultarova, Space.com, 20 Oct. 2026