Severe, harsh, unfriendly, brutal.
In a physical form, not digital.
Having a high energy (high frequency; short wavelength).
Of silk: not having had the natural gum boiled off.
Having a comparatively larger or a ninety-degree angle.
Containing alcohol.
Having disagreeable and abrupt contrasts in colour or shading.
Made up of parallel rays, producing clearly defined shadows.
Strong.
Sexually aroused; having an erect penis.
Difficult or requiring a lot of effort to do, understand, experience, or deal with.
Unquestionable, unequivocal.
Rigid in the drawing or distribution of the figures; formal; lacking grace of composition.
Tough and muscular.
High in dissolved chemical salts, especially those of calcium.
Having the capability of being a permanent magnet by being a material with high magnetic coercivity (compare soft).
Demanding a lot of effort to endure.
Far, extreme.
Velarized or plain, rather than palatalized.
Of a market: having more demand than supply; being a seller's market.
Using a manual or physical process, not by means of a software command.
Hardened; having unusually strong defences.
Having muscles that are tightened as a result of intense, regular exercise.
Resistant to pressure.
hardcore
Plosive.
Unvoiced.
Crack cocaine.
A tyre whose compound is softer than superhards, and harder than mediums.
Hard labor.
A firm or paved beach or slope convenient for hauling vessels out of the water.
With much force or effort.
Compactly.
With difficulty.
Unrelenting or unyielding in severity.
Unremitting, steady and persistent.