The difference between Abstract and Abstruse

When used as adjectives, abstract means derived, whereas abstruse means difficult to comprehend or understand.

Abstract is also noun with the meaning: an abridgement or summary of a longer publication.

Abstract is also verb with the meaning: to separate.

check bellow for the other definitions of Abstract and Abstruse

Abstract as a noun:

An abridgement or summary of a longer publication.
Abstract as a noun (medicine):

Something that concentrates in itself the qualities of a larger item, or multiple items. Concentrated essence of a product. A powdered solid extract of a medicinal substance mixed with lactose.
Abstract as a noun:

An abstraction; an abstract term; that which is abstract.
Abstract as a noun:

The theoretical way of looking at things; something that exists only in idealized form.
Abstract as a noun (arts):

An abstract work of art.
Abstract as a noun (real estate):

A summary title of the key points detailing a tract of land, for ownership; abstract of title.

Abstract as an adjective (obsolete):

Derived; extracted.
Abstract as an adjective (now, rare):

Drawn away; removed from; apart from; separate.
Abstract as an adjective:

Expressing a property or attribute separately of an object that is considered to be inherent to that object.
Abstract as an adjective:

Considered apart from any application to a particular object; not concrete; ideal; non-specific; general, as opposed to specific.
Abstract as an adjective:

Difficult to understand; abstruse; hard to conceptualize.
Abstract as an adjective (archaic):

Absent-minded.
Abstract as an adjective (arts):

Pertaining to the formal aspect of art, such as the lines, colors, shapes, and the relationships among them. Free from representational qualities, in particular the non-representational styles of the 20th century. Absolute. Lacking a story.
Abstract as an adjective:

Insufficiently factual.
Abstract as an adjective:

Apart from practice or reality; vague; theoretical; impersonal; not applied.
Abstract as an adjective (grammar):

As a noun, denoting an intangible as opposed to an object, place, or person.
Abstract as an adjective (computing):

Of a class in object-oriented programming, being a partial basis for subclasses rather than a complete template for objects.

Abstract as a verb (transitive):

To separate; to disengage.
Abstract as a verb (transitive):

To remove; to take away; withdraw.
Abstract as a verb (transitive, euphemistic):

To steal; to take away; to remove without permission.
Abstract as a verb (transitive):

To summarize; to abridge; to epitomize.

Examples:

"rfquotek Franklin"
Abstract as a verb (transitive, obsolete):

To extract by means of distillation.
Abstract as a verb (transitive):

To consider abstractly; to contemplate separately or by itself; to consider theoretically; to look at as a general quality.
Abstract as a verb (intransitive, reflexive, literally, figuratively):

To withdraw oneself; to retire.
Abstract as a verb (transitive):

To draw off (interest or attention).

Examples:

"He was wholly abstracted by other objects."
Abstract as a verb (intransitive, rare):

To perform the process of abstraction.
Abstract as a verb (intransitive, fine arts):

To create abstractions.
Abstract as a verb (intransitive, computing):

To produce an abstraction, usually by refactoring existing code. Generally used with "out".

Examples:

"He abstracted out the square root function."

Abstruse as an adjective:

Difficult to comprehend or understand.

Examples:

"synonyms: recondite obscure esoteric"
Abstruse as an adjective (obsolete):

Concealed or hidden out of the way; secret.