Synonyms of the word

unhazardous

• adj. Not hazardous.

risk-free

• adj. Free from or devoid of risk; safe.

riskless

• adj. Free of risk; safe.

safe

• adj. Not in danger; free from harm's reach.
• adj. Free from risk; harmless, riskless.
• adj. Providing protection from danger; providing shelter.
• adj. (baseball) When a batter successfully reaches first base, or when a baserunner successfully advances to…
• adj. Properly secured; secure.
• adj. (used after a noun, often forming a compound) Not susceptible to a specified source of harm.
• adj. (Britain, slang) Great, cool, awesome, respectable; a term of approbation.
• adj. (slang) Lenient, usually describing a teacher that is easy-going.
• adj. Reliable.
• adj. Cautious.
• n. A box, usually made of metal, in which valuables can be locked for safekeeping.
• n. (slang) A condom.
• n. (dated) A ventilated or refrigerated chest or closet for securing provisions from noxious animals or insects.
• v. (transitive) To make something safe.