What are the opposite words for sub stances?

Substances refer to matter that has a defined chemical composition and physical properties. Its antonyms would thus be words or concepts that are opposite in meaning to substances or do not fit into the definition of substances, i.e., something without a chemical or physical existence. Such antonyms could include abstract concepts such as emotions or ideologies, energy, light, darkness, or the intangible realm of ideas and thoughts. Substances can also be categorized into organic or inorganic, and antonyms can be words that relate to categories outside these descriptions, like living or non-living, natural or artificial, or even metaphysical versus concrete.

Antonym of the day

most doordie
few, little.