Favorable is a related term of sterling.

As an adjective favorable

is pleasing, encouraging or approving.

As a proper noun sterling is

a scottish surname, variant of stirling.

As nouns the difference between vivid and incandescent

is that vivid is a felt-tipped permanent marker while incandescent is an incandescent lamp or bulb.

As adjectives the difference between vivid and incandescent

is that vivid is clear, detailed or powerful while incandescent is emitting light as a result of being heated.

Canzonet is a related term of strain.

As nouns the difference between canzonet and strain

is that canzonet is a short song, now especially one which is light and breezy while strain is (obsolete) treasure or strain can be the act of straining, or the state of being strained.

As a verb strain is

(obsolete) to hold tightly, to clasp.

Sinful is a related term of snide.

As adjectives the difference between sinful and snide

is that sinful is full of sin; wicked; iniquitous; unholy while snide is disparaging or derisive in an insinuative way.

As a noun snide is

an underhanded, tricky person given to sharp practise; a sharper; a beat.

Heedless is a related term of spiritless.

As adjectives the difference between heedless and spiritless

is that heedless is unaware, without noticing while spiritless is lacking energy, drive, motivation or emotion enervated.

Impassivity is a related term of composure.

As nouns the difference between impassivity and composure

is that impassivity is the state of being impassive while composure is calmness of mind or matter, self-possession.

Strenuous is a related term of involved.

As adjectives the difference between strenuous and involved

is that strenuous is urgent, ardent, zealous while involved is complicated.

As a verb involved is

(involve).

Anomalous is a related term of variable.

As an adjective anomalous

is deviating from the normal; aberrant or abnormal.

As a noun variable is

variable.

As adjectives the difference between diligent and unintermitted

is that diligent is performing with intense concentration, focus, responsible regard while unintermitted is not intermitted; uninterrupted, ceaseless.

Courtly is a related term of dashing.

As adjectives the difference between courtly and dashing

is that courtly is suitable for a royal court; refined, dignified while dashing is spirited, audacious and full of high spirits.

As a verb dashing is

.

As a noun dashing is

the action of the verb to dash.