Difference between Unnatural and Grotesque

UNNATURAL vs GROTESQUE: NOUN

Anything grotesque.
A style of ornamentation characterized by fanciful combinations of intertwined forms.
Artificial grotto-work.
A whimsical figure, or scene, such as is found in old crypts and grottoes.
In printing, any uncouth form of type; specifically, in Great Britain, the black square-cut display-type called gothic in the United States.
Specifically In art, a capricious figure, work, or ornament; especially, a variety of arabesque which as a whole has no type in nature, being a combination of the parts of animals and plants, and of other incongruous elements.
That which is grotesque, as an uncouth or ill-proportioned figure, rude and savage scenery, an inartistic, clownish, or absurd fancy, a clumsy satire, or the like.
A work of art executed in this style.
A style of painting, sculpture, and ornamentation in which natural forms and monstrous figures are intertwined in bizarre or fanciful combinations.
One that is grotesque.
Art characterized by an incongruous mixture of parts of humans and animals interwoven with plants
A sans serif typeface.

Stilted, affected, or awkward.
Brutal or unfeeling.
Deviating from a behavioral or social norm.
Not included in nature; artificial.
Not in accordance with what usually occurs in nature.
Distorted and unnatural in shape or size; abnormal and hideous
Not natural; contrary, or not conforming, to the order of nature; being without natural traits.
Not natural; supernatural or artificial.
Not occuring in the environment or atmosphere
Going against nature; perverse.
Not normal; not typical or usual or regular or conforming to a norm
Not in accordance with or determined by nature; contrary to nature
Speaking or behaving in an artificial way to make an impression

Distorted and unnatural in shape or size; abnormal and hideous
Ludicrously odd
Characterized by ludicrous, repulsive, or incongruous distortion, as of appearance or manner. : ugly.
Outlandish or bizarre, as in character or appearance. : fantastic.
Of, relating to, or being the grotesque style in art or a work executed in this style.
Sans serif.
Disgusting or otherwise viscerally reviling.
Like the figures found in ancient grottoes; grottolike.
Wildly or strangely formed; whimsical; extravagant; of irregular forms and proportions; fantastic; ludicrous; antic.

Not normal
Contrary to nature
Artificial, etc. See factitious.
Not in conformity to nature; not agreeable to the real character of persons or things; not representing nature; forced; strained; affected; artificial: as, unnatural images or descriptions.
Acting without the affections of our common nature; not having the feelings natural to humanity; being without natural instincts: as, an unnatural parent.
Not natural; contrary to nature; monstrous; especially, contrary to the natural feelings: as, unnatural offenses.
=Syn. 1-3. Preternatural, etc. See supernatural.

Consisting of or resembling artificial grotto-work.
Hence Of the fantastic character of such grotto-work and of its decoration; wildly formed; of irregular forms and proportions; ludicrous; antic (which see), as the arabesques of the Renaissance, in which figures human to the waist terminate in scrolls, leafage, and the like, and are associated with animal forms and impossible flowers; hence, in general, whimsical, extravagant, or odd; absurdly bold: often, or more commonly, used in a sense of condemnation or depreciation.
Synonyms Fantastic, etc. (see fanciful); whimsical, wild, strange.
Abnormal and hideous

Strained, Constrained, Eery, Spooky, Stilted, Unco, Violent, Agonistic, Ugly, Monstrous, Uncanny, Eerie, Contrived, Artificial, Grotesque

Preposterous, Ludicrous, Farcical, Appalling, Absurd, Bizarre, Outrageous, Fantastic, Unusual, Antic, Strange, Ugly, Fantastical, Unnatural, Monstrous

Strained, Constrained, Eery, Spooky, Stilted, Unco, Violent, Agonistic, Ugly, Monstrous, Uncanny, Eerie, Contrived, Artificial, Grotesque

Preposterous, Ludicrous, Farcical, Appalling, Absurd, Bizarre, Outrageous, Fantastic, Unusual, Antic, Strange, Ugly, Fantastical, Unnatural, Monstrous

Chances are, it will feel scary and unnatural.
His honesty and incorruptibility were insurmountable, almost unnatural.
These sorts of differences are not unnatural, however.
Melanoma appears as unnatural growth, mostly in moles.
Natural is now considered unnatural and the unnatural is natural.
Society which lives by fear alone is an unnatural Society in an unnatural State.
Unnatural carnal knowledge is sexual intercourse with a person in an unnatural manner or with an animal.
She told me both children had an unnatural beauty, an unnatural goodness.
Mohawks, unnatural balding, unnatural single patches of hair, asymmetrical styles, etchings, braids, locks and twists are not allowed.
When unnatural thinness became attractive, girls did unnatural things to be thin.