wistfulness

As nouns the difference between wistfulness and regrets

is that wistfulness is the state or characteristic of being wistful while regrets is .

As a verb regrets is

(regret).

As a noun wistfulness

is the state or characteristic of being wistful.

As an adjective undefined is

lacking a definition or value.

As nouns the difference between wistfulness and regret

is that wistfulness is the state or characteristic of being wistful while regret is emotional pain on account of something done or experienced in the past, with a wish that it had been different; a looking back with dissatisfaction or with longing.

As a verb regret is

to feel sorry about (a thing that has or has not happened), afterthink: to wish that a thing had not happened, that something else had happened instead.

As nouns the difference between nostalgia and wistfulness

is that nostalgia is a longing for home or familiar surroundings; homesickness while wistfulness is the state or characteristic of being wistful.

As nouns the difference between wistfulness and rue

is that wistfulness is the state or characteristic of being wistful while rue is sorrow; repentance; regret.

As a verb rue is

to cause to repent of sin or regret some past action.

As nouns the difference between melancholy and wistfulness

is that melancholy is black bile, formerly thought to be one of the four "cardinal humours" of animal bodies while wistfulness is the state or characteristic of being wistful.

As an adjective melancholy

is affected with great sadness or depression.

As nouns the difference between wishfulness and wistfulness

is that wishfulness is the state or quality of being wishful; sometimes specifically wishful thinking while wistfulness is the state or characteristic of being wistful.

As nouns the difference between taxonomy and wistfulness

is that taxonomy is the science or the technique used to make a classification while wistfulness is the state or characteristic of being wistful.