recurring

Happening or occurring frequently, with repetition.

He has recurring asthma attacks.

Revenge is a recurring theme in this novel.

Of a decimal: having a set of digits that is repeated indefinitely.

Every rational number can be written as either a terminating decimal or a recurring decimal.

A recurrence; a coming round again.

Winter, here, is a dimension of all reality, not one-fourth of the spiritual year's endless recurrings.