Uncommon

observational

[obs-erv-ashun-al]

relating to the act of watching or noticing something carefully.

arcane

[ahr-keyn]

known or understood by very few; mysterious; secret; obscure; esoteric

despotism

[des-puh-tiz-uhm]

the rule of a despot; the exercise of absolute authority

groan

[gr-oan]

a low, mournful sound made in pain or distress; also expresses discontent or annoyance.