Insist is a related term of express.

As verbs the difference between insist and express

is that insist is to hold up a claim emphatically while express is (senseid) to convey or communicate; to make known or explicit.

As an adjective express is

(not comparable) moving or operating quickly, as a train not making local stops.

As a noun express is

a mode of transportation, often a train, that travels quickly or directly or express can be (obsolete) the action of conveying some idea using words or actions; communication, expression.

As adjectives the difference between informal and unprofessional

is that informal is not formal or ceremonious while unprofessional is unbecoming of a professional; hence inappropriate in the workplace.

Delineate is a related term of design.

As a verb delineate

is to sketch out, draw or trace an outline.

As a noun design is

design (creative profession or art).

As verbs the difference between deter and terrify

is that deter is to prevent something from happening while terrify is to frighten greatly; to fill with terror.

Unreal is a related term of trifling.

As adjectives the difference between unreal and trifling

is that unreal is fake; not real while trifling is trivial, or of little importance.

As a noun trifling is

the act of one who trifles; frivolous behaviour.

Mark is a related term of premonition.

As nouns the difference between mark and premonition

is that mark is sign while premonition is a clairvoyant or clairaudient experience, such as a dream, which resonates with some event in the future.

Court is a synonym of hearing.

As a proper noun court

is (us) an abbreviated term of respect for any court ("the court").

As an adjective hearing is

able to hear.

As a noun hearing is

(uncountable) the sense used to perceive sound.

As a verb hearing is

.

Bound is a related term of slither.

In lang=en terms the difference between bound and slither

is that bound is to cause to leap while slither is to slide.

As verbs the difference between bound and slither

is that bound is (bind) or bound can be to surround a territory or other geographical entity or bound can be to leap, move by jumping while slither is to move about smoothly and from side to side.

As an adjective bound

is (with infinitive) obliged (to) or bound can be (obsolete) ready, prepared.

As a noun bound

is (often|used in plural) a boundary, the border which one must cross in order to enter or leave a territory or bound can be a sizeable jump, great leap.

Unrecognising is likely misspelled.

Unrecognising has no English definition.

As an adjective hollow is

(of something solid) Having an empty space or cavity inside.

As an adverb hollow is

completely, as part of the phrase beat hollow or beat all hollow.

As a noun hollow is

a small valley between mountains; a low spot surrounded by elevations.

As a verb hollow is

to make a hole in something; to excavate.

As an interjection hollow is

alternative form of lang=en.

As adjectives the difference between exorbitant and improvident

is that exorbitant is exceeding proper limits; extravagant; excessive or unduly high while improvident is failing to provide for the future; reckless.