Fast it’s not surprising that jeremy is so obstinate. his sisters are equally as stubborn about getting what they want, no matter how impossible or challenging it may seem. read the sentences. which word in the sentence has the same meaning as the word obstinate? surprising stubborn impossible challenging

Stubborn.

Definitions:

Stubborn - having or showing dogged determination not to change one's attitude or position on something, especially in spite of good arguments or reasons to do so.

Obstinate - stubbornly refusing to change one's opinion or chosen course of action, despite attempts to persuade one to do so.

The clue in the paragraph is in the second sentence though; it references what the first sentence stated about Jeremy, and says that his sisters are “equally as stubborn”.