From under- + reserved. <span class="searchmatch">underreserved</span> (comparative more <span class="searchmatch">underreserved</span>, superlative most <span class="searchmatch">underreserved</span>) (finance) Having an inadequate reserve. 2007 November...
present participle underreserving, simple past and past participle <span class="searchmatch">underreserved</span>) (finance, intransitive) To put an inadequate amount of money in reserve...