Synonyms of the word

chancy

• adj. uncertain, risky, hazardous.
• adj. subject to chance; random.

chanceful

• adj. (obsolete) hazardous.

dangerous

• adj. Full of danger.
• adj. Causing danger; ready to do harm or injury.
• adj. (colloquial, dated) In a condition of danger, as from illness; threatened with death.
• adj. (obsolete) Hard to suit; difficult to please.
• adj. (obsolete) Reserved; not affable.

dicey

• adj. Fraught with danger.
• adj. Of uncertain, risky outcome.
• adj. Of doubtful or uncertain efficacy, provenance, etc.; dodgy.
• adj. (slang) Nauseating, rank.

dodgy

• adj. (Britain, Australia, New Zealand) evasive and shifty.
• adj. (Britain, Australia, New Zealand) unsound and unreliable.
• adj. dishonest.
• adj. risky.
• adj. deviant.
• adj. uncomfortable and weird.

flukey

• adj. lucky.
• adj. unstable, prone to rapid and unpredictable changes.

fluky

• adj. Alternative spelling of flukey.

iffy

• adj. (slang) Of dubious authenticity, legitimacy or legality.
• adj. Uncertain or chancy.

uncertain

• adj. Not certain; unsure.
• adj. Not known for certain; questionable.
• adj. Not yet determined; undecided.
• adj. Variable and subject to change.
• adj. Fitful or unsteady.
• adj. Unpredictable or capricious.
• n. (with "the") Something uncertain.

unsafe

• adj. Not safe; dangerous.