an antonym for that would be at the mountains base
mountain
the oppposite OS the base of a mountain is the summit
The opposite of the base of a mountain is its peak or summit. The base of a mountain refers to the bottom or lowest point of the mountain, while the peak is the topmost point. It is the highest elevation of the mountain where the slopes converge.
The opposite landform could be a lowland. Or in the ocean, a trench, deep or abyss. In mountains, the natural opposite of a peak is a valley. The opposite structure of a mountain, where the elevation is lower rather than higher, is a crevasse or chasm.
There are many possible words based on the meaning of "plain" that is used.The word pretty used a woman's appearance could be the opposite of plain.The word peak used for a mountain would be the opposite of a plain or prairie.The words pretentious, pompous, or poshcould be the opposite of a plain or ordinary event.The word private could be the opposite of something plain, as in obvious.The word phenomenal could be the opposite of a plain or mundane experience.The word prodigious could be the opposite of a plain performance.
I'm assuming that you would be referring to the "peak" of a mountain. The peak of the mountain is generally the tallest point; thus opposite of the base.
A gorge.
The Peak
what word is opposite of prudent
The opposite of anything is it's absence. Silence would be the opposite of a word spoken.
which is the opposite to the word satisfaccion
The opposite of the word "answer" is "question."