What is another word for most petrous?
Pronunciation: [mˈə͡ʊst pˈɛtɹəs] (IPA) 
The term "most petrous" refers to something that is exceptionally hard, rigid, or tough. There are several synonyms that can be used interchangeably with this word, such as "most unyielding," "most obdurate," "most inflexible," "most impenetrable," and "most indomitable." Each of these words highlights the immovable and enduring nature of an object or concept that is difficult to break down or move. Other synonyms for "most petrous" include "most adamantine," "most unbreakable," "most solid," and "most hardy." Each of these words underscores the idea of something that is firm and resilient, able to withstand the toughest of challenges and remain unyielding.
