Inspired by this.

Method 1: add to the preamble

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\tolerance=1
\emergencystretch=\maxdimen
\hyphenpenalty=10000
\hbadness=10000

This streches the lines and suppresses all the hyphenation. Works pretty well.

Method 2: suppress hyphen character completely by using

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\hyphenchar\font=-1

and remove overfull boxes:

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\sloppy