Yes, it can be (an unexpected visitor, unexpected costs).
The word unexpected is the antonym of 'expected' which is the past tense and past participle of the verb 'to expect' and can be used as an adjective. Unexpected means not expected, not anticipated.
The part of speech that the word my is used as is an adjective.
A suffix changes a word's part of speech. For example, the word 'happy' is an adjective. But when you add a suffix, which is an ending, it can change the part of speech. Happily is an adverb. Happiness is a noun.
for
it depends what word it is it could be any part of speech depending on the sentence
The word power is a noun. The plural form is powers.
The word "erratic" is an adjective. It is used to describe something that is unpredictable or irregular in behavior or movement.
The part of speech for this particular word is a noun.
The part of speech that the word my is used as is an adjective.
H is a letter, not a word. To be a part of speech, it needs to be a word.
The part of speech for the word diplomacy is a noun.
The part of speech for the word "boulevard" is a noun.
The part of speech for the word civilian is English grammar.
The word speech is a noun.
The part of speech for this particular word is a noun.
It is not ANY part of speech, there is no such English word as "stroobly".
The word speech is a noun.
The word speech is a noun.