Benighted
Part of speech: verb
Definition: (chiefly in passive) To overtake (a traveller etc) with the darkness of night, especially before shelter is reached.
Part of speech: adjective
Definition: plunged into darkness overtaken by night lacking knowledge or education; unenlightened
Dark
Part of speech: noun
Definition: A complete or (more often) partial absence of light.Ignorance.Nightfall.
Part of speech: adjective
Definition: Having an absolute or (more often) relative lack of light.Dull or deeper in hue; not bright or light.Hidden, secretWithout moral or spiritual light; sinister, malign.Conducive to hopelessness; depressing or bleakLacking progress in science or the arts; said of a time periodWith emphasis placed on the unpleasant aspects of life; said of a work of fiction, a work of nonfiction presented in narrative form or a portion of either
Example sentence: When a train goes through a tunnel and it gets dark, you don't throw away the ticket and jump off. You sit still and trust the engineer.