As adjectives the difference between nonmetallized and unmetallized

is that nonmetallized is not metallized while unmetallized is nonmetallized.

As adjectives the difference between cochlear and noncochlear

is that cochlear is (anatomy) of or pertaining to the cochlea while noncochlear is not cochlear.

As adjectives the difference between humorous and nonhumorous

is that humorous is full of humor or arousing laughter; funny while nonhumorous is not humorous.

As adjectives the difference between remarkable and nonremarkable

is that remarkable is worthy of being remarked or noticed; noticeable; conspicuous; hence, uncommon; extraordinary while nonremarkable is not remarkable.

As adjectives the difference between promotional and nonpromotional

is that promotional is of, or relating to a promotion while nonpromotional is not promotional.

As adjectives the difference between recreational and nonrecreational

is that recreational is used for recreation, for fun or pleasure while nonrecreational is not recreational.

As an adjective nonemotional

is not emotional; unrelated to emotion.

As an adverb nonemotionally is

in a nonemotional way.

Exogamous is a antonym of endogamous.

As adjectives the difference between endogamous and exogamous

is that endogamous is (of a marriage) Within a social group. The practice of endogamy while exogamous is of or relating to exogamy.

As nouns the difference between storage and outbase

is that storage is (uncountable) the act of storing goods; the state of being stored while outbase is a minor storage depot used to back up the transport and delivery operations from the main depot.

As verbs the difference between befoul and beray

is that befoul is to make foul; to soil while beray is to make foul; befoul; soil.