As adverbs the difference between genially and disagreeably

is that genially is in a genial manner; gaily; cheerfully while disagreeably is in a disagreeable manner.

As adjectives the difference between unperceived and unnoticed

is that unperceived is not perceived while unnoticed is not noticed.

As verbs the difference between sombre and smile

is that sombre is while smile is (ambitransitive) to have (a smile) on one's face.

As a noun smile is

a facial expression comprised by flexing the muscles of both ends of one's mouth, often showing the front teeth, without vocalisation, and in humans is a common involuntary or voluntary expression of happiness, pleasure, amusement or anxiety.

As an adjective devoid

is empty; having none of; completely without.

As a verb devoid

is to empty out; to remove.

As a noun desolation is

the act of desolating or laying waste; destruction of inhabitants; depopulation.

As a verb sombre

is .

As a noun desolation is

desolation.

As nouns the difference between adamant and clear

is that adamant is an imaginary rock or mineral of impenetrable hardness; a name given to the diamond and other substances of extreme hardness while clear is (scientology) an idea state of beingness free of unwanted influences.

As an adjective adamant

is firm; unshakeable; unyielding; determined.

As nouns the difference between availability and suitability

is that availability is the quality of being available while suitability is the quality of being suitable.

As nouns the difference between infection and inoculum

is that infection is (pathology) the act or process of infecting while inoculum is the active material used in an inoculation; an inoculant.

As a verb foment

is to incite or cause troublesome acts; to encourage; to instigate.

As a proper noun rouse is

.

As verbs the difference between applied and transformed

is that applied is (apply) while transformed is (transform).

As an adjective applied

is put into practical use.