Cautious is an adjective because its something you do.
2nd answer:
'Cautious' is an adjective because it modifies a noun. "Are you a cautious person?"
(Something that you do is actually a verb.)
part of speech
Adjective
What part of speech is thaw
The part of speech for oscillate is verb.
An adjective is a part of speech.
Achtung is actually a German word. It means attention or caution. You can find it on the cover of the U2 album 'Achtung Baby'. The word achtung would be an abstract noun.
The part of speech for this particular word is a noun.
part of speech
The part of speech for "answer" is a noun.
adverb
what part of speech is beneath
The part of speech for "unfamiliar" is an adjective.
The part of speech of "came" is a verb.
The part of speech for "twirl" is a verb.
The part of speech for "explicit" is an adjective.
The part of speech for "indefinite" is an adjective.
The part of speech for "lecturer" is a noun.