Ultrareligious is commonly used to describe individuals who are extremely devout in their religious beliefs and practices. However, there are several other words that can be used to convey a similar meaning. For instance, fervent, zealous and devout all describe individuals who are deeply committed to their faith. Similarly, pious, righteous, and sanctimonious can be used to describe people who are strongly religious, but with some added connotations. Other synonyms include devoutly religious, godly, devout, and reverent. All of these words can be used to describe someone who is extremely religious and devout, but some may have additional nuances or inferred meanings that should be considered when selecting the right word to describe a person's beliefs.