By default, Weaver Xtreme does NOT enable auto-hyphenation.
There is an option under Customizer : Layout : Content that controls this. Be sure it is off.
Otherwise, some plugin must be doing that to be helpful….
Adding this to the Weaver Xtreme Custom CSS (Customizer : Custom CSS : Global Custom CSS) should stop it:
body {-webkit-hyphens:none !important;-moz-hyphens:none !important;-ms-hyphens:none;hyphens:none !important;}
The !important might or might not be necessary depending on who/how the hyphenation is being added.