IPA: /ʌnˈvɛəriɪŋ/
KK: /ʌnˈvɛr.i.ɪŋ/
Not changing; remaining the same without any differences or variations.
The unvarying landscape stretched out before us, with no hills or valleys in sight.
Unvarying → It is formed from "un-" (meaning not) and "varying" (from the root "varius" in Latin, meaning diverse or different). The word "unvarying" means not changing or remaining the same without variation.
Think of 'not' ('un-') changing or being 'diverse' ('varius') — that's why unvarying means something that stays the same.