The word Incondensable means something that cannot be condensed. It is often used in scientific contexts where substances that cannot be condensed are being discussed. Synonyms for the word Incondensable would include phrases like non-condensable, incapable of condensing, or even gas-like in nature. Other options might include words like incorporeal, immaterial, and ethereal. Depending on the context, other synonyms for Incondensable might include ideas like non-tangible, non-compressible, and even weightless. Each of these different synonyms helps to capture a slightly different aspect of the overall concept of Incondensable, and can be used to add precision and clarity to scientific writing and discussions.