Entry 1 sense Webster, 1913 Fossilized /fäs'-əl-īzdˌ/ · Fos·sil·ized · IPA /fˈɑsəlˌaɪzd/ 01 a. Converted into a fossil; antiquated; firmly fixed in views or opinions. 1. Converted into a fossil; antiquated; firmly fixed in views or opinions. “A fossilized sample of confused provincialism.” — Earle.