The word 'lapidarian' pertains to the art of stone carving or monumental inscriptions. Its antonyms are closely related to the opposite of stone, such as 'fluffy', 'flexible', 'malleable', and 'pliable'. Other antonyms include 'delicate', 'fragile', 'brittle', and 'breakable'. These words depict materials that are not as robust and hard as stone. Another word that is opposite to lapidarian is 'ephemeral', which means short-lived or fleeting. This antonym is used to describe materials that have a temporary quality or cannot withstand the test of time, unlike stone, which is known for its durability and long-lasting quality.