IPA: /ˈstiːpər/
KK: /ˈstipər/
Having a greater angle or slope than something else; more inclined or rising sharply.
The hill is steeper than I expected, making it harder to climb.
Steeper → It is formed from "steep" (from Old English *stæpe*, meaning high or steep) and the comparative suffix "-er" (meaning more). The word "steeper" means having a greater slope or incline than something else.
Think of something that is 'higher' or 'more inclined' — 'steep' describes a high slope, and '-er' indicates it is more so compared to another.