The highest scoring word in Words With Friends is OVERLONG with a total of 16 points.
Synonyms: boring, monotonous, dull, deadly dull, uninteresting, unexciting, unvaried, unvarying, lacking variety, mind-numbing, mindless, soul-destroying, soulless, humdrum, dreary, ho-hum, mundane, wearisome, wearying, tiresome, soporific, dry, as dry as dust, arid, lifeless, colourless, monochrome, uninspired, uninspiring, flat, plodding, slow, banal, vapid, insipid, bland, lacklustre, prosaic, run-of-the-mill, pedestrian, jejune, leaden, heavy