From pep + -less. <span class="searchmatch">pepless</span> (comparative more <span class="searchmatch">pepless</span>, superlative most <span class="searchmatch">pepless</span>) Without pep....
From <span class="searchmatch">pepless</span> + -ness. <span class="searchmatch">peplessness</span> (uncountable) Absence of pep....