Oh, dude, you can totally use the adjective "fierce" with foxes. Like, they may look cute, but those little guys are fierce predators in the wild. So, yeah, you can describe those sly creatures as "fierce foxes."
One word is "nostalgic" (the adjective form of nostalgia).
Yes. The adjective is one word overall.
Not the phrase. The word "which" is used as an adjective, but "one" following it would be a noun.
No. The word pair means two items, often of a similar kind. The word "paired" is one adjective form.
The noun and adjective are one word, firstborn (first of children).
Native as an adjective is one
One adjective from the word "reason" is "reasonable."
One word is "nostalgic" (the adjective form of nostalgia).
That adjective may be classic.
it is one
"Textbook" is one word. With only two of the letter 'o'.
Yes. The adjective is one word overall.
No. Investigate is a verb. One adjective form is the word "investigative."
Not the phrase. The word "which" is used as an adjective, but "one" following it would be a noun.
Yes, it is one word, the verb or adjective overheard.
The word boundary is a noun. The word divergent is an adjective. Neither one is a verb.
The noun and adjective are one word, firstborn (first of children).