As adjectives the difference between brisk and smart

is that brisk is full of liveliness and activity; characterized by quickness of motion or action; lively; spirited; quick while smart is causing sharp pain; stinging.

As verbs the difference between brisk and smart

is that brisk is to make or become lively; to enliven; to animate while smart is to hurt or sting.

As a noun smart is

a sharp, quick, lively pain; a sting.

As an initialism SMART is

specific, Measurable, Attainable, Realistic, Tangible, a mnemonic for goal-setting.

As a proper noun Smart is

{{surname}.

Turbulence is a related term of anger.

As nouns the difference between turbulence and anger

is that turbulence is (uncountable) the state or fact of being turbulent or agitated; tempestuousness, disturbance while anger is remorse, regret.

In transitive terms the difference between speck and blot

is that speck is to mark with specks; to speckle while blot is to obscure; to eclipse; to shadow.

Favourable is a related term of proper.

As adjectives the difference between favourable and proper

is that favourable is pleasing, encouraging or approving while proper is (lb) suitable .

As an adverb proper is

(scotland) properly; thoroughly; completely.

Collar is a related term of cincture.

As nouns the difference between collar and cincture

is that collar is anything that encircles the neck while cincture is an enclosure, or the act of enclosing, encircling or encompassing.

As verbs the difference between collar and cincture

is that collar is to grab or seize by the collar or neck while cincture is to girdle, circle or surround.

Darkened is a related term of gloomy.

As a verb darkened

is (darken).

As an adjective gloomy is

imperfectly illuminated; dismal through obscurity or darkness; dusky; dim; clouded.

Excellent is a related term of apt.

As an adjective excellent

is of the highest quality; splendid.

As an adverb excellent

is (obsolete) excellently.

As a noun apt is

.

As a proper noun apt is

.

In archaic terms the difference between bright and propitious

is that bright is manifest to the mind, as light is to the eyes; clear; evident; plain while propitious is favorably disposed towards someone.

As adjectives the difference between bright and propitious

is that bright is visually dazzling; luminous, lucent, clear, radiant; not dark while propitious is favorable; benevolent (e.g. propitious weather.

As a noun bright

is an artist's brush used in oil and acrylic painting with a long ferrule and a flat, somewhat tapering bristle head.

As a proper noun Bright

is {{surname|lang=en}.

Paddle is a related term of perambulate.

In lang=en terms the difference between paddle and perambulate

is that paddle is to spank with a paddle while perambulate is to inspect (an area) on foot.

As verbs the difference between paddle and perambulate

is that paddle is to propel something through water with a paddle, oar, hands, etc or paddle can be (british) to walk or dabble playfully in shallow water, especially at the seaside while perambulate is to walk about, roam or stroll.

As a noun paddle

is a two-handed, single-bladed oar used to propel a canoe or a small boat.

Mournful is a related term of serious.

As adjectives the difference between mournful and serious

is that mournful is filled with grief or sadness; being in a state in which one mourns while serious is without humor or expression of happiness; grave in manner or disposition; earnest; thoughtful; solemn.