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 charge alleges Guzman was driving at an unsafe speed to maintain control of the vehicle. — Rosalio Ahumada, Sacbee.com, 4 Nov. 2026

Included in the order is a provision allowing local supervisors of elections in affected areas to designate new polling places for sites that are unsafe or where voters can’t get to them because the roads are blocked due to flooding. — Roger Simmons, The Orlando Sentinel, 3 Nov. 2026

Included in the order is a provision allowing local supervisors of elections in affected areas to designate new polling places at sites that are unsafe or where voters can't reach them because roads are blocked by flooding. — CBS News, 3 Nov. 2026

Officials in Pomfret and other towns across Vermont have moved to close some roads this year during peak foliage, to discourage trespassing and unsafe traffic. — Laina Gustafson, Christian Science Monitor, 3 Nov. 2026