Anagrams of: UDLARKS

• A complete or (more often) partial absence of light.

• Ignorance.

• Nightfall.

• A dark shade or dark passage in a painting, engraving, etc.

• To grow or become dark, darken.

• To remain in the dark, lurk, lie hidden or concealed.

• To make dark, darken; to obscure.

• A Nordic poet of the Viking Age

• devoid of or deficient in light or brightness; shadowed or black

• (used of color) having a dark hue

• absence of light or illumination

• absence of moral or spiritual values

• an unilluminated area

• the time after sunset and before sunrise while it is dark outside

• an unenlightened state

• brunet (used of hair or skin or eyes)

• stemming from evil characteristics or forces; wicked or dishonorable

• secret

• showing a brooding ill humor

• lacking enlightenment or knowledge or culture

• marked by difficulty of style or expression

• causing dejection

• not giving performances; closed

• the time of day immediately following sunset

• become dusk

• lie in wait, lie in ambush, behave in a sneaky and secretive manner

• be about a place without any apparent purpose

• wait in hiding to attack

• to monitor a web forum or similar without making your presence pubilc

• East Indian tree bearing a profusion of intense vermilion velvet-textured blooms and yielding a yellow dye

• North American songbirds having a yellow breast

• a songbird that lives mainly on the ground in open country; has streaky brown plumage

• any of numerous predominantly Old World birds noted for their singing

• any carefree episode

• play boisterously

• A shirt.

• To cover with sarking, or thin boards.

• a mood or display of sullen aloofness or withdrawal

• be in a huff and display one's displeasure