ulterior

/ʌlˈtɪriər/

ul·ter·ior

BrE /ʌlˈtɪəriə(r)/

NAmE /ʌlˈtɪriər/

[only before noun]

(of a reason for doing sth)

that sb keeps hidden and does not admit

She must have some ulterior motive for being nice to me—what does she really want?