Antonym: brighten, lighten. Similar words: market, marker, markedly, supermarket, marketing, free market, marketplace, dark room. Meaning: ['dɑːkən] 
v. 1. become dark or darker 2. become or make darker 3. tarnish or stain 4. make dark or darker.
v. 1. become dark or darker 2. become or make darker 3. tarnish or stain 4. make dark or darker. 61. Now that I have left that home, I'll never darken the door again.
More similar words: market, marker, markedly, supermarket, marketing, free market, marketplace, dark room, darkling, darkness, in the dark, dark horse, market economy, the dark ages, worker, turkey, caseworker, dare, dart, kennel, shaken, broken, weaken, sicken, sunken, radar, daresay, drunken, thicken, forsaken.