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Dictionary.com
Definitions

safe

[seyf] / seɪf /
ADJECTIVE
free from harm
Synonyms
STRONGEST
intact protected secure
STRONG
okay snug
WEAK
cherished free from danger guarded home free impervious impregnable in safety inviolable invulnerable maintained out of danger out of harm's way preserved safe and sound safeguarded sheltered shielded sitting pretty tended unassailable undamaged under lock and key under one's wing unharmed unhurt uninjured unmolested unscathed unthreatened vindicated watched
Antonyms
STRONGEST
insecure unprotected
WEAK
dangerous exposed harmful incautious poisonous risky unguarded unsafe unthoughtful vulnerable
ADJECTIVE
not dangerous
Synonyms
STRONGEST
certain clear dependable harmless healthy pure reliable secure
STRONG
innocent sound
WEAK
checked competent decontaminated innocuous innoxious inoffensive neutralized nonpoisonous nontoxic risk-free riskless tame tried-and-true trustworthy uninjurious unpolluted wholesome
Antonyms
STRONGEST
indefinite irresponsible uncertain undecided unfixed unreliable unsure
WEAK
dangerous exposed harmful incautious poisonous risky unguarded unprotected unsafe unthoughtful vulnerable
ADJECTIVE
cautious, conservative
Synonyms
STRONGEST
dependable prudent realistic reliable sure
WEAK
buttoned-up calculating careful chary circumspect competent considerate discreet gingerly guarded on safe side trustworthy unadventurous wary
Antonyms
STRONGEST
irresponsible uncertain unreliable unsteady unsure
WEAK
dangerous exposed harmful incautious poisonous risky unguarded unprotected unsafe unthoughtful vulnerable

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Researchers report the first blinded, randomized, sham-controlled evidence that a procedure called duodenal mucosal resurfacing may offer a safe and lasting way to maintain weight loss without ongoing medication.

From Science Daily • Apr. 23, 2026

Bug hotels provide a safe habitat for insects and small creatures to shelter, hibernate and nest.

From BBC • Apr. 23, 2026

Each day, thousands of controllers monitor flight paths and direct pilots in the high-stress work of keeping U.S. skies safe.

From The Wall Street Journal • Apr. 23, 2026

The Silver Lake Reservoir is a popular destination for joggers and walkers and has been considered a relatively safe public space for the Los Angeles community.

From Los Angeles Times • Apr. 22, 2026

“You have no idea how much it meant to see Harry,” I said when I was safe inside.

From "The Hiding Place" by Corrie ten Boom