As an adjective nonexperimental

is not experimental (of a research method).

As an adverb nonexperimentally is

in a nonexperimental manner.

As adjectives the difference between unlit and nonlighted

is that unlit is not lit while nonlighted is not lighted; unlit.

As adjectives the difference between merchantable and nonmerchantable

is that merchantable is fit for market; such as is usually sold in market, or such as will bring the ordinary price; as, merchantable wheat; sometimes, a technical designation for a particular kind or class while nonmerchantable is not merchantable.

Nonmerchantability is a related term of nonmerchantable.

As an adjective nonmerchantable is

not merchantable.

As adjectives the difference between unencrypted and nonencrypted

is that unencrypted is of something that has been decrypted successfully, or of something that should have been encrypted, but was not while nonencrypted is not encrypted; unencrypted.

As an adjective exploratory

is serving to explore or investigate.

As a noun exploratory

is an exploration or investigation.

As an adverb exploratorily is

in an exploratory way or fashion.

As nouns the difference between complementary and complementariness

is that complementary is a complementary colour while complementariness is the state or quality of being complementary; complementarity.

As an adjective complementary

is acting as a complement.

As nouns the difference between complementarity and complementariness

is that complementarity is the state or characteristic of being complementary while complementariness is the state or quality of being complementary; complementarity.

As nouns the difference between childcare and childcarer

is that childcare is the act, practice, or occupation of supervising and taking care of young children while childcarer is one who works in childcare.

As nouns the difference between tetrazzini and spaghetti

is that tetrazzini is an American dish usually including a non-red meat and a white sauce over spaghetti or some similar pasta while spaghetti is a type of pasta made in the shape of long thin strings.