Difference between Darkish and Dark

Darkish

Part of speech: adjective

Definition: Somewhat dark.

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: I regret those times when I've chosen the dark side. I've wasted enough time not being happy.