As adjectives the difference between somnambulant and perfidious

is that somnambulant is walking as if, or while, asleep; sleepwalking while perfidious is of, pertaining to, or representing perfidy; disloyal to what should command one's fidelity or allegiance.

As adjectives the difference between convivial and perfidious

is that convivial is of or relating to a feast or entertainment, or to eating and drinking, with accompanying festivity; festive; social; gay; jovial while perfidious is of, pertaining to, or representing perfidy; disloyal to what should command one's fidelity or allegiance.

As adjectives the difference between sociable and perfidious

is that sociable is tending to socialize or be social; friendly; inviting; congenial while perfidious is of, pertaining to, or representing perfidy; disloyal to what should command one's fidelity or allegiance.

As nouns the difference between promise and hope

is that promise is an oath or affirmation; a vow while hope is the belief or expectation that something wished for can or will happen.

As verbs the difference between promise and hope

is that promise is to commit to something or action; to make an oath; make a vow while hope is to want something to happen, with a sense of expectation that it might.

As a proper noun Hope is

{{given name|female|from=English}} from the virtue, like Faith and Charity first used by Puritans.

As adjectives the difference between rustic and soporific

is that rustic is country-styled or pastoral; rural while soporific is tending to induce sleep.

As nouns the difference between rustic and soporific

is that rustic is a (sometimes unsophisticated) person from a rural area while soporific is something inducing sleep, especially a drug.

As an adjective urbane

is (of a man) courteous, polite, refined, and suave.

As a noun sophist is

one of a class of teachers of rhetoric, philosophy, and politics in ancient greece.

As nouns the difference between nurtures and nutrition

is that nurtures is while nutrition is nutrition.

As adverbs the difference between tremendously and dramatically

is that tremendously is greatly; enormously while dramatically is in a dramatic manner.

As nouns the difference between extravagance and extra

is that extravagance is excessive or superfluous expenditure of money while extra is a run scored without the ball having hit the striker's bat - a wide, bye, leg bye or no ball; in Australia referred to as a sundry.

As an adjective extra is

beyond what is due, usual, expected, or necessary; extraneous; additional; supernumerary.

As an adverb extra is

to an extraordinary degree.

As nouns the difference between reinvention and recreation

is that reinvention is a reinventing of something while recreation is any activity, such as play, that amuses, diverts or stimulates.