There are many words that can be used as synonyms for the phrase "not fatal." Some examples include non-lethal, survivable, harmless, innocuous, non-deadly, non-life-threatening, minor, and treatable. These words are often used to describe a situation where an injury or illness is not going to result in death. For example, a laceration that does not require surgery would be considered non-fatal. Overall, these synonyms serve as an important reminder that not all injuries or illnesses have to be life-threatening and can be managed or treated successfully.