(1):
(a.) Abounding with circumstances; detailing or exhibiting all the circumstances; minute; particular.
(2):
(a.) Consisting in, or pertaining to, circumstances or particular incidents.
(3):
(a.) Incidental; relating to, but not essential.
(4):
(n.) Something incidental to the main subject, but of less importance; opposed to an essential; - generally in the plural; as, the circumstantials of religion.