adjective
an adjective is a word that describes or modifies a noun or pronoun. In this case, 'unreceptive' describes someone or something that is not open or responsive to new ideas or suggestions.
The new policy was met with an unreceptive attitude from the employees.
She was unreceptive to the idea of going out tonight.
He's always so unreceptive to trying new things.
Her mind was like an unreceptive soil, unwilling to accept any new ideas.