From underdo + -er. <span class="searchmatch">underdoer</span> (plural <span class="searchmatch">underdoers</span>) One who underdoes something. unordered...
<span class="searchmatch">underdoers</span> plural of <span class="searchmatch">underdoer</span>...
ordered. unordered (not comparable) Not having been ordered. unordered goods Not in any sorted order. an unordered list not in any sorted order <span class="searchmatch">underdoer</span>...