1. 
   epochal
   [adj] - highly significant or important especially bringing about or marking the beginning of a new development or era
   Found op http://www.webdictionary.co.uk/definition.php?query=epochal
   
   
2. 
   Epochal
   Ep'o·chal adjective Belonging to an epoch; of the nature of an epoch. ' Epochal points.' Shedd.
   Found op http://www.encyclo.co.uk/webster/E/58
   
   
3. 
   epochal
   epoch-making adjective highly significant or important especially bringing about or marking the beginning of a new development or era; `epochal decisions made by Roosevelt and Churchill`; `an epoch-m...
   Found op http://wordnetweb.princeton.edu/perl/webwn?s=epochal
   
   
4. 
   Epochal
   • (a.) Belonging to an epoch; of the nature of an epoch.
   Found op http://thinkexist.com/dictionary/meaning/epochal/
   
   
5. 
   epochal
   1) Epoch-making 2) Extremely important 3) Extremely significant 4) Important 5) Momentous 6) Significant
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/epochal/1
   
   

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