Words formed from any letters in petulant plus optional blank

b -

unable₁₂

unbelt₁₂

upbeat₁₃

c -

unlace₁₂

d -

unlade₁₀

unlead₁₀

update₁₁

upland₁₃

f -

unfelt₁₂

i -

unpile₁₂

uptilt₁₁

k -

unkept₁₅

uptake₁₄

m -

untame₁₁

n -

tunnel₁₀

unpent₁₂

o -

tupelo₁₁

p -

upleap₁₄

r -

turtle₈

unreal₉

uprate₁₀

uptear₁₀

s -

ulpans₁₂

unseal₉

unseat₈

unstep₁₁

upsent₁₁

w -

unwept₁₄

walnut₁₂

wattle₁₀