unpredictable

As adjectives the difference between whimsical and unpredictable

is that whimsical is given to whimsy; capricious; odd; peculiar; playful; light-hearted or amusing while unpredictable is unable to be predicted.

As a noun unpredictable is

an unpredictable thing.

As adjectives the difference between variable and unpredictable

is that variable is able to vary while unpredictable is unable to be predicted.

As nouns the difference between variable and unpredictable

is that variable is something that is variable while unpredictable is an unpredictable thing.

As adjectives the difference between unpredictable and mercurial

is that unpredictable is unable to be predicted while mercurial is (often capitalized, see (mercurial)) pertaining to the planet mercury.

As nouns the difference between unpredictable and mercurial

is that unpredictable is an unpredictable thing while mercurial is (obsolete) any of the plants known as mercury.

As adjectives the difference between unexpected and unpredictable

is that unexpected is not expected, anticipated or foreseen while unpredictable is unable to be predicted.

As a noun unpredictable is

an unpredictable thing.

As adjectives the difference between impulsive and unpredictable

is that impulsive is having the power of driving or impelling; giving an impulse; moving; impellent while unpredictable is unable to be predicted.

As nouns the difference between impulsive and unpredictable

is that impulsive is that which impels or gives an impulse; an impelling agent while unpredictable is an unpredictable thing.

As adjectives the difference between unpredictable and unexpectable

is that unpredictable is unable to be predicted while unexpectable is unusual, or unpredictable. Not expected.

As a noun unpredictable

is an unpredictable thing.

As adjectives the difference between unpredictable and weatherlike

is that unpredictable is unable to be predicted while weatherlike is resembling the weather in some way; changeable, unpredictable, following a seasonal pattern, etc.

As a noun unpredictable

is an unpredictable thing.