Words formed from any letters in dullnesses plus optional blank

a -

usnea₇

f -

unfed₁₁

p -

upend₁₁

r -

users₆

t -

unlet₈

unset₇

v -

velds₁₁

vends₁₁

venue₁₁

w -

unsew₁₀

unwed₁₁

wedel₁₀

weeds₉

weens₉

welds₁₀

wells₁₀

wends₁₀

x -

unsex₁₄

y -

yells₉

yeses₇

yules₉