As adjectives the difference between cathartic and evacuative

is that cathartic is purgative; inducing catharsis while evacuative is that causes evacuation; cathartic; purgative.

As a noun cathartic

is a laxative.

As adjectives the difference between purgative and evacuative

is that purgative is (capable of) purging while evacuative is that causes evacuation; cathartic; purgative.

As a noun purgative

is something, such as a substance or medicine, that purges; laxative.

As nouns the difference between comedown and bringdown

is that comedown is a sudden drop to a lower status, condition or level; a disappointment or letdown while bringdown is disappointment, letdown.

As nouns the difference between infotainment and docutainment

is that infotainment is a form of programming (cinematic, television, live action, etc) that provides both information and entertainment; also known as soft news, the information in infotainment programming consists of mostly celebrity news and human drama while docutainment is infotainment.

As nouns the difference between witness and earwitness

is that witness is attestation of a fact or event; testimony while earwitness is a witness who gives evidence of what he or she has heard.

As a verb witness

is to furnish proof of, to show.

As nouns the difference between evidence and earwitness

is that evidence is facts or observations presented in support of an assertion while earwitness is a witness who gives evidence of what he or she has heard.

As a verb evidence

is to provide evidence for, or suggest the truth of.

As a verb heard

is (hear).

As a noun earwitness is

a witness who gives evidence of what he or she has heard.

As adjectives the difference between blameworthy and blameful

is that blameworthy is deserving blame or censure; reprehensible while blameful is blameworthy.

Blamefully is a derived term of blameful.

As an adjective blameful is

blameworthy.

Blameful is a derived term of blamefulness.

Blamefulness is often a misspelling of blameful.

Blamefulness has no English definition.

As an adjective blameful is

blameworthy.