lacking enlightenment or knowledge or culture; "this benighted country"; "benighted ages of barbarism and superstition"; "the dark ages"; "a dark age in the history of education"
overtaken by night or darkness; "benighted (or nighted) travelers hurrying toward home"
lasting a very short time; "the ephemeral joys of childhood"; "a passing fancy"; "youth's transient beauty"; "love is transitory but at is eternal"; "fugacious blossoms"
of an obscure nature; "the new insurance policy is written without cryptic or mysterious terms"; "a deep dark secret"; "the inscrutable workings of Providence"; "in its mysterious past it encompasses all the dim origins of life"- Rachel Carson; "rituals totally mystifying to visitors from other lands"