Concern is a related term of unhappiness.

As nouns the difference between concern and unhappiness

is that concern is that which affects one's welfare or happiness while unhappiness is the feeling of not being happy.

As a verb concern

is (label) to relate or belong to; to have reference to or connection with; to affect the interest of; to be of importance to.

As adjectives the difference between troublesome and cryptic

is that troublesome is giving trouble or anxiety; vexatious; burdensome; wearisome while cryptic is having hidden meaning.

As a noun cryptic is

a cryptic crossword.

Scandalous is a related term of sinful.

As adjectives the difference between scandalous and sinful

is that scandalous is wrong, immoral, causing a scandal while sinful is full of sin; wicked; iniquitous; unholy.

Cuff is a related term of thwack.

As nouns the difference between cuff and thwack

is that cuff is (obsolete) glove; mitten or cuff can be a blow, especially with the open hand; a box; a slap while thwack is the act of thwacking; a strike or blow, especially with a flat implement.

As verbs the difference between cuff and thwack

is that cuff is to furnish with cuffs or cuff can be to hit, as a reproach, particularly with the open palm to the head; to slap while thwack is to whack or hit with a flat implement.

Contrasting is a related term of contrary.

As adjectives the difference between contrasting and contrary

is that contrasting is set in opposition to, showing the differences between while contrary is opposite; in an opposite direction; in opposition; adverse.

As verbs the difference between contrasting and contrary

is that contrasting is while contrary is (obsolete) to oppose; to frustrate.

As an adverb contrary is

contrarily.

As a noun contrary is

the opposite.

Flat is a related term of neutral.

As nouns the difference between flat and neutral

is that flat is an area of level ground or flat can be (archaic|new england|now chiefly british) an apartment while neutral is neutral (the position of a set of gears in which power cannot be transmitted to the drive mechanism).

As an adjective flat

is having no variations in height.

As an adverb flat

is so as to be flat.

As a verb flat

is (poker slang) to make a flat call; to call without.

Forebear is a related term of originator.

As nouns the difference between forebear and originator

is that forebear is an ancestor while originator is someone who originates, creates or founds something.

As a verb forebear

is .

Superior is a related term of peerless.

As adjectives the difference between superior and peerless

is that superior is higher in quality while peerless is without peer or equal; unparalleled, nonpareil of the highest quality, best.

As a noun superior

is a person of higher rank or quality.

Cloaked is a related term of collusive.

As adjectives the difference between cloaked and collusive

is that cloaked is wearing a cloak while collusive is secretly acting together for a fraudulent or illegal purpose.

As a verb cloaked

is (cloak).

As nouns the difference between wonder and spectacle

is that wonder is something that causes amazement or awe; a marvel while spectacle is something exhibited to view; usually, something presented to view as extraordinary, or as unusual and worthy of special notice; a remarkable or noteworthy sight; a show; a pageant.

As a verb wonder

is to be affected with surprise or admiration; to be struck with astonishment; to be amazed; to marvel.