From <span class="searchmatch">smileless</span> + -ly. <span class="searchmatch">smilelessly</span> (not comparable) Without a smile....
From <span class="searchmatch">smileless</span> + -ness. <span class="searchmatch">smilelessness</span> (uncountable) Absence of smiles....
From smile + -less. <span class="searchmatch">smileless</span> (not comparable) Without a smile, unsmiling. slimeless...
From slime + -less. slimeless (not comparable) Free of slime. <span class="searchmatch">smileless</span>...
plumber's smile semi-smile shit-eating smile smile a thousand smiles smileful <span class="searchmatch">smileless</span> smilelike smile line smiles and giggly smile school smile-smirk smilet...