The process of turning inwards, or becoming introverted.(noun)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "introverting" in a sentence
"Whether they were introverting from outer hurts, or extraverting their energy, what was true was the fact that they did not quit on themselves."
"Have you ever had a DWI (driving while introverting) or DUI (driving under the influence of the muse) violation, or any other legal problem related to your writing?"
"Cleante demanded, sensing that the introverted one was in danger of introverting herself into extinction unless a little human teasing could prevent it."