Antonyms of adj lethal

1 sense of lethal

Sense 1
deadly, lethal -- (of an instrument of certain death; "deadly poisons"; "lethal weapon"; "a lethal injection")

INDIRECT (VIA fatal) -> nonfatal -- (not bringing death; "nonfatal heart attack")

Similarity of adj lethal

1 sense of lethal

Sense 1
deadly, lethal -- (of an instrument of certain death; "deadly poisons"; "lethal weapon"; "a lethal injection")
       => fatal (vs. nonfatal) -- (bringing death)