In transitive terms the difference between establish and decide

is that establish is to prove and cause to be accepted as true; to establish a fact; to demonstrate while decide is to cause someone to come to a decision.

Solemnity is a related term of earnestness.

As nouns the difference between solemnity and earnestness

is that solemnity is the quality of being deeply serious and sober or solemn while earnestness is the quality of being earnest; sincerity; seriousness.

Guiding is a related term of governing.

As verbs the difference between guiding and governing

is that guiding is while governing is .

As a noun guiding

is guidance.

Disrepute is a related term of abhorrence.

As nouns the difference between disrepute and abhorrence

is that disrepute is loss or want of reputation; ill character; disesteem; discredit while abhorrence is extreme aversion or detestation; the feeling of utter dislike or loathing .

As a verb disrepute

is to bring into disreputation; to hold in dishonor.

Stoutness is a synonym of bulk.

As nouns the difference between stoutness and bulk

is that stoutness is (usually|uncountable) a state or quality of being stout while bulk is size, mass or volume.

As an adjective bulk is

being large in size, mass or volume (of goods, etc).

As a verb bulk is

to appear or seem to be, as to bulk or extent.

As adverbs the difference between unethically and offensively

is that unethically is in an unethical manner while offensively is in an offensive manner.

Contaminated is a related term of execrable.

As adjectives the difference between contaminated and execrable

is that contaminated is adulterated; impure while execrable is loathsome, detestable.

As a verb contaminated

is (contaminate).

As an adjective jocose

is given to jest; habitually jolly.

As a noun witticism is

a witty remark.

Accurate is a related term of rightexact.

Ghastly is a related term of plain.

As adjectives the difference between ghastly and plain

is that ghastly is like a ghost in appearance; deathlike; pale; pallid; dismal while plain is .

As adverbs the difference between ghastly and plain

is that ghastly is in a ghastly manner while plain is (colloquial) simply.

As a noun plain is

(rare|poetic) a lamentation or plain can be an expanse of land with relatively low relief.

As a verb plain is

to lament, bewail or plain can be (obsolete|transitive) to plane or level; to make plain or even on the surface.