Used to indicate lack of sympathy
To endure.
To toughen.
A person who obtains things by force; a thug or bully.
Harsh or severe.
Difficult or demanding.
Stubborn or persistent; capable of stubbornness or persistence.
Strong and resilient; sturdy.
Undergoing plastic deformation before breaking.
Difficult to cut or chew.
Rugged or physically hardy.
Rowdy or rough.
Open, public; having the property that theories and practices are publicly visible, thereby reducing the chance of corruption.
Not noticeable because it happens automatically or in the background; invisible.
Having the property of transparency, i.e. sufficiently accurate that the compressed result is perceptually indistinguishable from the uncompressed input.
Of an image or animated gif, having parts that do not overwrite the color of the background the image is placed over.
See-through, clear; having the property that light passes through it almost undisturbed, such that one can see through it clearly.
Obvious; readily apparent; easy to see or understand.