abysmal

As adjectives the difference between abysmal and thorough

is that abysmal is pertaining to, or resembling an abyss; unending; profound; fathomless; immeasurable while thorough is painstaking and careful not to miss or omit any detail.

As a preposition thorough is

through.

As a noun thorough is

a furrow between two ridges, to drain off the surface water.

As adjectives the difference between abysmal and extreme

is that abysmal is pertaining to, or resembling an abyss; unending; profound; fathomless; immeasurable while extreme is of a place, the most remote, farthest or outermost.

As a noun extreme is

the greatest or utmost point, degree or condition.

As an adverb extreme is

extremely.

As adjectives the difference between abysmal and appaling

is that abysmal is (now|rare) pertaining to, or resembling an abyss; unending; profound; fathomless; immeasurable while appaling is .

As adjectives the difference between abysmal and egregious

is that abysmal is pertaining to, or resembling an abyss; unending; profound; fathomless; immeasurable while egregious is exceptional, conspicuous, outstanding, most usually in a negative fashion.

As a noun taxonomy

is the science or the technique used to make a classification.

As an adjective abysmal is

(now|rare) pertaining to, or resembling an abyss; unending; profound; fathomless; immeasurable .

As adjectives the difference between abysmal and dismal

is that abysmal is pertaining to, or resembling an abyss; unending; profound; fathomless; immeasurable while dismal is disappointingly inadequate.