Sorrow is a related term of anxiety.

As nouns the difference between sorrow and anxiety

is that sorrow is (uncountable) unhappiness, woe while anxiety is an unpleasant state of mental uneasiness, nervousness, apprehension and obsession or concern about some uncertain event.

As a verb sorrow

is to feel or express grief.

Propensity is a synonym of weakness.

As nouns the difference between propensity and weakness

is that propensity is a tendency, preference, or attraction while weakness is (uncountable) the condition of being weak.

Calibre is a related term of grade.

As a verb calibre

is .

As an adjective grade is

nco or officer (attributive).

As a noun grade is

rank.

Pique is a related term of perturbation.

As nouns the difference between pique and perturbation

is that pique is a kind of ribbed or corded fabric while perturbation is (uncountable) agitation; the state of being perturbed.

As nouns the difference between flaw and howler

is that flaw is a flake, fragment, or shiver while howler is that which howls, especially an animal which howls, such as a wolf or a howler monkey.

As a verb flaw

is to add a flaw to, to make imperfect or defective.

As adjectives the difference between arrogant and defiant

is that arrogant is having excessive pride in oneself, often with contempt for others while defiant is defying.

Impertinence is a related term of flippancy.

As nouns the difference between impertinence and flippancy

is that impertinence is (uncountable) lack of pertinence; irrelevance while flippancy is a disrespectful levity or pertness especially in respect to grave or sacred matters.

Cloistered is a synonym of alone.

As adjectives the difference between cloistered and alone

is that cloistered is dwelling or raised in, or as if in, cloisters; solitary while alone is by oneself, solitary.

As a verb cloistered

is (cloister).

As an adverb alone is

by one's self; apart from, or exclusive of, others; solo.

As nouns the difference between gap and interspace

is that gap is an opening in anything made by breaking or parting while interspace is a space or interval between two things; an interstice.

As verbs the difference between gap and interspace

is that gap is to notch, as a sword or knife while interspace is to make, or to occupy such a space.

Hunk is a related term of concretion.

As nouns the difference between hunk and concretion

is that hunk is a large or dense piece of something while concretion is concretion.