Select the antonym of
amenable

Let's check the meanings of the given words:
amenable: Open and responsive to suggestion; easily persuaded or controlled.

responsive: Answering or replying; reacting quickly and positively. (Synonym)

pliable: Easily bent; easily influenced. (Synonym)

docile: Ready to accept control or instruction; submissive. (Synonym)

unsusceptible: Not capable of being affected, influenced, or easily controlled. (Antonym)

Thus, unsusceptible is the perfect antonym.