As adjectives the difference between cohesive and cogent

is that cohesive is having cohesion while cogent is reasonable and convincing; based on evidence.

As adjectives the difference between cavalier and facetious

is that cavalier is not caring enough about something important while facetious is treating serious issues with deliberately inappropriate humour; flippant.

As a noun cavalier

is a military man serving on horse.

As adjectives the difference between cheerful and thrilled

is that cheerful is noticeably happy and optimistic while thrilled is extremely excited or delighted.

As a verb thrilled is

(thrill).

As adjectives the difference between convoluted and obscure

is that convoluted is having numerous overlapping coils or folds while obscure is dark, faint or indistinct.

As a verb obscure is

to render obscure; to darken; to make dim; to keep in the dark; to hide; to make less visible, intelligible, legible, glorious, beautiful, or illustrious.

As adjectives the difference between convoluted and obscur

is that convoluted is having numerous overlapping coils or folds while obscur is dark.

As verbs the difference between harsh and hush

is that harsh is to negatively criticize while hush is to become quiet.

As an adjective harsh

is unpleasantly rough to the touch or other senses.

As a noun hush is

a silence, especially after some noise.

As nouns the difference between nativity and hometown

is that nativity is (christianity) the birth of jesus as described in the gospels of matthew and luke while hometown is an individual’s place of birth, childhood home, or place of main residence.

As an adjective conscientious is

thorough, careful, or vigilant; implies a desire to do a task well.

Fundation is often a misspelling of foundation.

Fundation has no English definition.

As a noun foundation

is the act of founding, fixing, establishing, or beginning to erect.

As an adjective nefarious

is sinful, villainous, criminal, or wicked, especially when noteworthy or notorious for such characteristics.

As a noun wickedness is

the state of being wicked; evil disposition; immorality.