caustic

Illnatured is a related term of caustic.

As an adjective caustic is

caustic.

Tart is a related term of caustic.

As adjectives the difference between tart and caustic

is that tart is sharp to the taste; acid; sour while caustic is caustic.

As a noun tart

is a type of small open pie, or piece of pastry, containing jelly or conserve; a sort of fruit pie or tart can be (british|slang) a prostitute.

As a verb tart

is to practice prostitution.

As adjectives the difference between caustic and sour

is that caustic is capable of burning, corroding or destroying organic tissue while sour is having an acidic, sharp or tangy taste.

As nouns the difference between caustic and sour

is that caustic is any substance or means which, applied to animal or other organic tissue, burns, corrodes, or destroys it by chemical action; an escharotic while sour is the sensation of a sour taste.

As a verb sour is

to make sour.

Raw is a related term of caustic.

As an abbreviation raw

is (games) the rules as written: the actual rules appearing in the rulebook, as opposed to house rules, or as opposed to the rules that might have been intended (in the event of a mistake in the rulebook).

As an adjective caustic is

caustic.

As adjectives the difference between abusive and caustic

is that abusive is wrongly used; perverted; misapplied; unjust; illegal while caustic is capable of burning, corroding or destroying organic tissue.

As a noun caustic is

any substance or means which, applied to animal or other organic tissue, burns, corrodes, or destroys it by chemical action; an escharotic.

Merciless is a related term of caustic.

As adjectives the difference between merciless and caustic

is that merciless is showing no mercy; cruel and pitiless while caustic is caustic.

Probing is a related term of caustic.

As adjectives the difference between probing and caustic

is that probing is of something that investigates or explores deeply while caustic is caustic.

As a noun probing

is the action of investigating]] or [[explore|exploring.

As a verb probing

is .

Caustic is a related term of heady.

As adjectives the difference between caustic and heady

is that caustic is caustic while heady is intoxicating or stupefying.

As adjectives the difference between brutal and caustic

is that brutal is (savagely violent)Savagely violent, vicious, ruthless, or cruel while caustic is capable of burning, corroding or destroying organic tissue.

As a noun caustic is

any substance or means which, applied to animal or other organic tissue, burns, corrodes, or destroys it by chemical action; an escharotic.

As adjectives the difference between derisive and caustic

is that derisive is expressing or characterized by derision; mocking; ridiculing while caustic is capable of burning, corroding or destroying organic tissue.

As a noun caustic is

any substance or means which, applied to animal or other organic tissue, burns, corrodes, or destroys it by chemical action; an escharotic.