Synonyms of the word

self-destructive

• adj. That causes injury to oneself or harm to one's interests.

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.

suicidal

• adj. Pertaining to suicide.
• adj. (of a person) Likely to commit, or to attempt to commit, suicide.
• adj. (informal) Extremely reckless.
• n. someone suicidal, someone likely to kill themselves.

unsafe

• adj. Not safe; dangerous.