Fragile.
Able to break or be broken.
Something that is (easily) breakable.
A set of customized hardware that is part of a drum kit. Breakables typically consist of: the drummer's cymbals including high-hats, the snare drum, the kick pedal and the drummer's stool.
To endure.
To toughen.
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.
Used to indicate lack of sympathy
A person who obtains things by force; a thug or bully.