Of a reaction or other process, taking place readily.
Easy, now especially in a disparaging sense; contemptibly easy.
Lazy, simplistic (especially of explanations, discussions etc.).
Effortless, fluent (of work, abilities etc.).
Incapable of registering a reaction or stimulus.
Obstinate and unruly; strongly opposed to something.
Not affected by great heat.
Difficult to treat.
A material or piece of material, such as a brick, that has a very high melting point.