As adjectives the difference between singular and complex

is that singular is singular (linear algebra: of matrix: having no inverse) while complex is made up of multiple parts; composite; not simple.

As a noun complex is

a problem.

As a verb complex is

(chemistry|intransitive) to form a complex with another substance.

As adjectives the difference between generative and unique

is that generative is having the power of generating, propagating, originating, or producing while unique is (not comparable) being the only one of its kind; unequaled, unparalleled or unmatched.

As a noun unique is

a thing without a like; something unequalled or unparallelled.

As a verb rodent

is .

As a noun nonrodents is

.

As an adjective knowledgeable

is having knowledge, especially of a particular subject.

As a noun awareness is

the state or level of consciousness where sense data can be confirmed by an observer.