IPA(key): /ˌsuːpəˈɹˌʌnbəˈliːvəbl̩/ <span class="searchmatch">superunbelievable</span> (comparative more <span class="searchmatch">superunbelievable</span>, superlative most <span class="searchmatch">superunbelievable</span>) (rare) Exceptionally unbelievable;...
likely, plausible, probable His excuse seems rather unbelievable. <span class="searchmatch">superunbelievable</span> unbelievably belief believe incredible implausible ^ “unbelievable...
super-unbelievable, superlative most super-unbelievable) Alternative form of <span class="searchmatch">superunbelievable</span>. 2018 March 19, Eliza Thompson, “That Japanese Death Queen From Tomb...