All hill antonyms

noun hill

• valley — an elongated depression between uplands, hills, or mountains, especially one following the course of a stream.
• nadir — Astronomy. the point on the celestial sphere directly beneath a given position or observer and diametrically opposite the zenith.
• canyon — A canyon is a long, narrow valley with very steep sides.
• ditch — a long, narrow excavation made in the ground by digging, as for draining or irrigating land; trench.
• decline — If something declines, it becomes less in quantity, importance, or strength.
• depression — A depression is a time when there is very little economic activity, which causes a lot of unemployment and poverty.
• lowness — situated, placed, or occurring not far above the ground, floor, or base: a low shelf.
• bottom — The bottom of something is the lowest or deepest part of it.
• importance — the quality or state of being important; consequence; significance.
• gulley — gully1 (defs 1, 2).