As adjectives the difference between Vigorous and imaginative

is that Vigorous is physically strong and active while imaginative is having a lively or creative imagination.

Intelligence is a synonym of acuteness.

As nouns the difference between acuteness and intelligence

is that acuteness is the quality of being acute or pointed; as, the acuteness of an angle while intelligence is capacity of mind, especially to understand principles, truths, facts or meanings, acquire knowledge, and apply it to practice; the ability to learn and comprehend.

As adjectives the difference between definite and conclusive

is that definite is having distinct limits while conclusive is pertaining to a conclusion.

As a noun definite

is (obsolete) anything that is defined or determined.

As nouns the difference between relinquishment and refusal

is that relinquishment is the act of relinquishing something while refusal is the act of refusing.

As an initialism gift

is (medicine) (gamete intrafallopian transfer).

As a proper noun bent is

.

As adjectives the difference between fanciful and ethereal

is that fanciful is imaginative or fantastic; unreal or imagined while ethereal is pertaining to the hypothetical upper, purer air, or to the higher regions beyond the earth or beyond the atmosphere; celestial; otherworldly; as, ethereal space; ethereal regions.

As nouns the difference between idiocy and comicalness

is that idiocy is (psychology) the state or condition of being an idiot; the quality of having an intelligence level far below average; mental retardation while comicalness is the state or quality of being comical.

As nouns the difference between hostility and invasion

is that hostility is the state of being hostile while invasion is a military action consisting of armed forces of one geopolitical entity entering territory controlled by another such entity, generally with the objective of conquering territory or altering the established government.

As nouns the difference between spirit and viciousness

is that spirit is spirit (alcohol) while viciousness is the characteristic of being vicious.

As verbs the difference between combined and associated

is that combined is past tense of combine while associated is past tense of associate.

As an adjective combined

is resulting from the addition of several sources, parts, elements, aspects, etc. able to be united together, to converge.