Lethal applies to something that is bound to cause death or exists for the destruction of life. See examples of lethal used in a sentence. A lethal weapon (definition of lethal from the cambridge academic content dictionary © cambridge university press)
Jan 20, 2026adjective lethal (comparative more lethal, superlative most lethal) of, pertaining to, or causing death; Some common synonyms of lethal are deadly, fatal, and mortal. While all these words mean "causing or capable of causing death," lethal applies to something that is bound to cause death or exists for the.
A substance that is lethal can kill people or animals. .a lethal dose of sleeping pills. .chemicals lethal to fish and aquatic mammals.
Accusations lethal to the candidate's image. Definition of lethal adjective in oxford advanced learner's dictionary.
