Deincelization or ascending or deincelification means escaping inceldom. It is the direct opposite and antonym of incelization. If deincelization is attempted by a truecel it is viewed as a delusional belief (usually a cope) held by some 1st decilers that they can escape inceldom. It is possible on the other hand for high-tier incels (nearcels) to ascend if they looksmax or improve themselves in some other way.
Nonetheless, for some truecels, or incelish, the whole purpose of ascending becomes somewhat pointless if you are only able to do so once you've reached your 30s or 40s, as some men have reached penopause by then.