Definitions

1. adjective

lacking brightness or vividness of color; dull

“The drab colors of the old house needed a fresh coat of paint.”

2. verb

to make dull or uninteresting

“The exciting story was drabbet by the long, boring lectures.”

3. verb

to dull or to make dull, especially by adding a covering or coating

“The artist carefully drabbet the canvas with a layer of primer.”