Exacting is a related term of unfathomable.

As adjectives the difference between exacting and unfathomable

is that exacting is making excessive demands; hard to satisfy while unfathomable is impossible to fathom or understand; incomprehensible.

As a verb exacting

is .

Diminish is a related term of slacken.

In lang=en terms the difference between diminish and slacken

is that diminish is to disappear gradually while slacken is to make slack, less taut, or less intense.

As verbs the difference between diminish and slacken

is that diminish is to make smaller while slacken is to gradually decrease in intensity or tautness; to become slack.

Pattern is a synonym of ideal.

As nouns the difference between pattern and ideal

is that pattern is model, example while ideal is ideal (perfect standard).

As a verb pattern

is to apply a pattern.

Obedience is a synonym of accordance.

As nouns the difference between obedience and accordance

is that obedience is persuasion; allegiance while accordance is agreement; harmony; conformity; compliance.

Profundity is a related term of discernment.

As nouns the difference between profundity and discernment

is that profundity is the state of being profound or abstruse while discernment is the ability to distinguish; judgement.

Clever is a related term of trenchant.

As adjectives the difference between clever and trenchant

is that clever is nimble with hands or body; skillful; adept while trenchant is (obsolete) fitted to trench or cut; gutting; sharp.

In intransitive terms the difference between defect and crack

is that defect is to abandon or turn against; to cease or change one's loyalty, especially from a military organisation or political party while crack is to make a sharply humorous comment.

As an adjective crack is

highly trained and competent.

Obnoxious is a related term of rotten.

As an adjective obnoxious

is extremely unpleasant, offensive, very annoying, odious or contemptible.

As a noun rotten is

.

Positively is a related term of really.

As adverbs the difference between positively and really

is that positively is (manner)  in a positive manner while really is (lb) actually; in fact; in reality.

As an interjection really is

indicating surprise at, or requesting confirmation of, some new information; to express skepticism.

Spraypaint is a related term of laminate.

As nouns the difference between spraypaint and laminate

is that spraypaint is while laminate is .

As a verb spraypaint

is .