As nouns the difference between cornice and eave

is that cornice is   A horizontal architectural element of a building, projecting forward from the main walls, originally used as a means of directing rainwater away from the building's walls. See also: eaves, fascia while eave is eaves: the underside of a roof that extends beyond the external walls of a building.

As verbs the difference between saddened and distressed

is that saddened is past tense of sadden while distressed is past tense of distress.

As an adjective distressed is

anxious or uneasy.

As adjectives the difference between predominant and predetermined

is that predominant is predominant while predetermined is determined in advance.

As verbs the difference between predominant and predetermined

is that predominant is while predetermined is (predetermine).

As adjectives the difference between illusory and meretricious

is that illusory is resulting from an illusion; deceptive, imaginary, unreal while meretricious is (obsolete) of, or relating to prostitutes or prostitution.

As nouns the difference between levitation and elevation

is that levitation is the raising of something, such as a body, without apparent physical cause, allegedly using the power of the mind while elevation is the act of raising from a lower place, condition, or quality to a higher; said of material things, persons, the mind, the voice, etc.; as, the elevation of grain; elevation to a throne; elevation to sainthood; elevation of mind, thoughts, or character.

As an adjective splendrous

is splendid, having splendor.

As a verb bad is

to simulate.

As nouns the difference between category and classified

is that category is a group, often named or numbered, to which items are assigned based on similarity or defined criteria while classified is (informal) a classified advertisement in a newspaper or magazine.

As a verb classified is

(classify).

As an adjective classified is

formally assigned by a government to one of several levels of sensitivity, usually (in english) top secret, secret, confidential, and, in some countries, restricted; thereby making disclosure to unauthorized persons illegal.

In transitive terms the difference between decouple and unfasten

is that decouple is to unlink; to take apart while unfasten is to loose; to unfix; to unbind; to untie; figuratively, to detach from any connecting link or agency; to disconnect.

As verbs the difference between decouple and detach

is that decouple is to unlink; to take apart while detach is to take apart from; to take off.

As verbs the difference between decouple and unthread

is that decouple is while unthread is to remove a thread from.