Yes, "foul" is primarily an adjective. It is used to describe something that is unpleasant, offensive, or morally wrong.
The word "foul" can be both an adjective and a noun. As an adjective, it typically describes something as offensive, disgusting, or unclean. As a noun, "foul" is often used in sports to refer to a violation or an instance of misconduct.
An adjective
The word "omniscient" is an adjective.
The word "darkest" is an adjective.
It is an Adjective.
The word "foul" can be both an adjective and a noun. As an adjective, it typically describes something as offensive, disgusting, or unclean. As a noun, "foul" is often used in sports to refer to a violation or an instance of misconduct.
The part of speech that the word my is used as is an adjective.
Adjective
It is an Adjective.
The word "imaginary" is an adjective.
The word "obdurate" is an adjective.
The word "frugal" is an adjective.
The word "blurry" is an adjective.
The word "indigent" is an adjective.
The word "solemn" is an adjective.
The word "rural" is an adjective.
The word "darkest" is an adjective.