As adjectives the difference between indignant and inflammatory

is that indignant is showing anger or indignation, especially at something unjust or wrong while inflammatory is tending to inflame or provoke somebody.

As a noun inflammatory is

any material that causes inflammation.

As adjectives the difference between moralistic and didactic

is that moralistic is characteristic of or relating to a narrow-minded concern of the morals of others; self-righteous while didactic is instructive or intended to teach or demonstrate, especially with regard to morality. (I.e., didactic poetry.

As a noun didactic is

a treatise on teaching or education.

As adjectives the difference between pretentious and moralistic

is that pretentious is marked by an unwarranted claim to importance or distinction while moralistic is characteristic of or relating to a narrow-minded concern of the morals of others; self-righteous.

As adjectives the difference between patronizing and didactic

is that patronizing is offensively condescending while didactic is instructive or intended to teach or demonstrate, especially with regard to morality. (I.e., didactic poetry.

As a verb patronizing

is present participle of lang=en.

As a noun didactic is

a treatise on teaching or education.

As nouns the difference between suggestion and mandate

is that suggestion is something suggested (with subsequent adposition being for while mandate is an official or authoritative command; an order or injunction; a commission; a judicial precept.

As a verb mandate is

to authorize.

As adjectives the difference between unpractised and unconversant

is that unpractised is an alternative spelling of lang=en while unconversant is not conversant; unfamiliar, unacquainted.

Unpleasant is a related term of formidable.

As adjectives the difference between unpleasant and formidable

is that unpleasant is not pleasant while formidable is causing fear, dread, awe or admiration as a result of size, strength, or some other impressive quality; commanding respect; causing wonder or astonishment.

Apparition is a related term of nightmare.

As nouns the difference between apparition and nightmare

is that apparition is an act of becoming visible; appearance; visibility while nightmare is a female demon or monster, thought to plague people while they slept and cause a feeling of suffocation and terror during sleep.

Expert is a related term of sharp.

As a noun expert

is (label) rate assessor.

As a proper noun sharp is

.

As nouns the difference between impression and understanding

is that impression is the indentation or depression made by the pressure of one object on or into another while understanding is mental, sometimes emotional process of comprehension, assimilation of knowledge, which is subjective by its nature.

As an adjective understanding is

showing compassion.

As a verb understanding is

present participle of lang=en.