The state or condition of being substantial.(noun)
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Use "substantialness" in a sentence
"Though a degree of astringency can be desirable in a dish or drink—it contributes a feeling of substantialness—it often becomes tiresome."
"Victoria, William, and Macarthy, situated on separate hills commanding the town, add to the general appearance of permanent substantialness so different from the usual ramshackledom of West"
"Even when you go ashore and have had time to recover your senses, scattered by the surf experience, you find this substantialness a true one, not a mere visual delusion produced by painted wood as the seeming substantialness of Sierra"