Best synonyms for 'mortal' are 'deadly', 'human' and 'fatal'. More 1100 Mortal synonyms. Synonyms for mortal, including phrases that contain mortal: perishable, physical, bodily, corporeal, fleshly Mortal definition, subject to death; having a transitory life: all mortal creatures. Mortal synonyms. mortal | definition: subject to death | synonyms: earthly, earthborn| antonyms: infinite, heavenly, immortal, multiply. Synonyms for 'Mortal'. mortal | definition: subject to death | synonyms: earthly, earthborn, finite| antonyms: infinite, heavenly, immortal, multiply 32 synonyms of mortals from the Merriam-Webster Thesaurus, plus 11 related words, definitions, and antonyms. Words with similar meaning of Mortal at Thesaurus dictionary Top synonyms for mortal (other words for mortal) are deadly, human and fatal. Deadly, fatal, lethal. Popular synonyms for Mortal and phrases with this word. Find all the synonyms of the word mortal presented in a simple and clear manner. Word of the Day: apparatus. More than 70,800 synonyms available on Full list of synonyms for Mortal is here. What are another words for Mortal? is the web's best resource for English synonyms, antonyms, and definitions. . What is another word for mortal? See more. Find another word for mortals.