Included below are past participle and present participle forms for the verb attain which may be used as adjectives within certain contexts. Able to be achieved, accomplished or obtained.

What type of word is attain?

The act of attaining; the act of arriving at or reaching; the act of obtaining by exertion or effort. That which is attained, or obtained by exertion; acquisition; acquirement.

Can it's be an adjective?

The possessive adjectives are my, your, his, her, its, our, their, and whose. A possessive adjective sits before a noun (or a pronoun) to show who or what owns it.