Learn English – Meaning of ‘sky high’

meaningnoun-phrases

China is a rich country, yet food prices are sky high.

The word 'sky' seems an adjective.

Best Answer

It's an idiomatic way of saying extremely high, exorbitantly high. Sky is not an adjective here; much rather, both words form a single entity that can work as an adjective or an adverb. You will often see it hyphenated, sky-high.