Momentous (8)
There are a few possibilities for this:
important
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">momentous</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for historic that I've seen before include "Connecting with old times" , "sort of present" , "Pertaining to what is important in the past" , "Significant" , "Of significance in the past" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">momentous</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for eventful that I've seen before include "Full of noteworthy incidents" , "Memorable; momentous" , "Consequential" , "Action-packed" , "Packed with incident, lively" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">momentous</span>' is the definition.<br/ ><span class="explanation-format__explanation">(similar in meaning)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for important that I've seen before include "It's vital" , "major" , "Significant, valuable" , "Meaningful" , "Noteworthy, significant" .)