List of 426 Sets of Synonyms - How they Differ - Total of 2307 Words - 160

SYNONYMS: fatal, deadly, mortal, lethal.
These adjectives apply to what causes or is likely to cause death.

Fatal describes conditions, circumstances, or events that have caused or are destined inevitably to cause death or dire consequences: a fatal accident; a fatal illness.
Deadly means capable of killing: a deadly weapon; a deadly poison.
Mortal describes a condition or action that has produced or is about to produce death: a mortal wound.
Lethal refers to a sure agent of death that may have been created solely for the purpose of killing: execution by lethal injection; a lethal dose of barbiturates.