crass

As an adjective crass

is coarse; crude; not refined or sensible.

As adjectives the difference between philistine and crass

is that philistine is hostile to or lacking in appreciation for art or culture, or having no understanding of them while crass is coarse; crude; not refined or sensible.

As a noun philistine

is (philistine).

As adjectives the difference between crass and brash

is that crass is coarse; crude; not refined or sensible while brash is impetuous or rash.

As a noun brash is

leaf litter of small leaves and little twigs as found under a hedge.

As adjectives the difference between boorish and crass

is that boorish is behaving as a boor; rough in manners; rude; uncultured while crass is coarse; crude; not refined or sensible.

As an adjective crass is

coarse; crude; not refined or sensible.

Rough is a related term of crass.

As adjectives the difference between rough and crass

is that rough is having a texture that has much friction not smooth; uneven while crass is coarse; crude; not refined or sensible.

As a noun rough

is the unmowed part of a golf course.

As a verb rough

is to create in an approximate form.

As an adverb rough

is in a rough manner; rudely; roughly.

Crass is a related term of unpolished.

As adjectives the difference between crass and unpolished

is that crass is coarse; crude; not refined or sensible while unpolished is not polished; not brought to a polish.

Barbarous is a synonym of crass.

As adjectives the difference between barbarous and crass

is that barbarous is not classical or pure while crass is coarse; crude; not refined or sensible.

As adjectives the difference between unrefined and crass

is that unrefined is crude, raw or unprocessed while crass is coarse; crude; not refined or sensible.

Crass is a synonym of obscene.

As adjectives the difference between obscene and crass

is that obscene is offensive to current standards of decency or morality while crass is coarse; crude; not refined or sensible.