unexpensive

As adjectives the difference between unexpensive and nonexpensive

is that unexpensive is not expensive; inexpensive while nonexpensive is not expensive.

As adjectives the difference between cheap and unexpensive

is that cheap is low and/or reduced in price while unexpensive is {{cx|archaic|lang=en}} Not expensive; inexpensive.

As a noun cheap

is trade; traffic; chaffer; chaffering.

As a verb cheap

is to trade; traffic; bargain; chaffer; ask the price of goods; cheapen goods.

As an adverb cheap

is cheaply.