Answer:
a)adjective Not especially impressive, remarkable, or noteworthy; rather dull, mediocre, uninteresting, or unimportant. It gets good reviews, but the new sushi restaurant in town is really nothing to boast about.
b) Definition. A pronoun (I, me, he, she, herself, you, it, that, they, each, few, many, who, whoever, whose, someone, everybody, etc.) is a word that takes the place of a noun. In the sentence Joe saw Jill, and he waved at her, the pronouns he and her take the place of Joe and Jill, respectively