Hardness is a related term of certainty.

As nouns the difference between hardness and certainty

is that hardness is the quality of being hard while certainty is the state of being certain.

Bestow is a related term of permit.

As verbs the difference between bestow and permit

is that bestow is to lay up in store; deposit for safe keeping; stow; place while permit is .

Unconditional is a related term of autocratic.

As adjectives the difference between unconditional and autocratic

is that unconditional is absolute; without conditions, limitations, reservations or qualifications while autocratic is of or pertaining to autocracy or to an autocrat; absolute; holding independent and arbitrary powers of government.

As adjectives the difference between tumultuous and insubordinate

is that tumultuous is noisy and disorderly while insubordinate is rebellious or defiant to authority.

As nouns the difference between stricture and ruling

is that stricture is a rule restricting behaviour or action while ruling is an order or a decision on a point of law from someone in authority.

As an adjective ruling is

that rules; predominant; chief; reigning; controlling.

As a verb ruling is

present participle of lang=en.

Exigency is a related term of cavil.

As nouns the difference between exigency and cavil

is that exigency is the demands or requirements of a situation (usually plural ) while cavil is a petty or trivial objection or criticism.

As a verb cavil is

to criticise for petty or frivolous reasons.

Visitation is a related term of ill_luck.

As a proper noun visitation

is (label) the visit of the virgin mary to her cousin elizabeth; the commemoration of this on 30 may in eastern christianity or 31 may in western christianity.

As a noun ill_luck is

bad luck; misluck; misfortune.

Opinion is a related term of design.

As nouns the difference between opinion and design

is that opinion is opinion while design is design (creative profession or art).

Conceit is a related term of contrivance.

As nouns the difference between conceit and contrivance

is that conceit is (obsolete) something conceived in the mind; an idea, a thought while contrivance is a (mechanical) device to perform a certain task.

As a verb conceit

is (obsolete) to form an idea; to think.

Communication is a related term of familiarity.

As nouns the difference between communication and familiarity

is that communication is the act or fact of communicating anything; transmission while familiarity is the state of being extremely friendly; intimacy.