ideational

US /ˌaɪ.diˈeɪ.ʃən.əl/
UK /ˌaɪ.diˈeɪ.ʃən.əl/
1.

観念的な

relating to or involving the activity of forming ideas in the mind:

:
This branch of linguistics distinguishes between the ideational, interpersonal, and textual functions of language.