Definitions
1.noun(chiefly in the plural) Something incidental to the main subject, but of less importance."the circumstantials of religion"
2.adjectivePertaining to or dependent on circumstances, especially as opposed to essentials; incidental, not essential.
3.adjectiveAbounding with minor circumstances; in great detail; particular.
4.adjectiveFull of circumstance or pomp; ceremonial.
5.adjectiveSuggesting guilt, but not proving it conclusively."It is unlikely he will be convicted; the evidence against him is circumstantial at best."