As detailed above, 'landslide' can be an adjective or a noun. Noun usage: The candidate won by a landslide.

Is landslide a noun or adjective?

Noun The earthquake triggered a landslide. They were buried under the landslide. The presidential election turned out to be one of the biggest landslides in history. She won the election by a landslide.

What kind of word is landslide?

noun Also called, especially British, land·slip [land-slip] (for defs. 1, 2). the downward falling or sliding of a mass of soil, detritus, or rock on or from a steep slope. the mass itself.