render unintelligible

Their tongues seem quite unfitted for the pronunciation of the Spanish language, which many of them render unintelligible by transposing letters and lopping off syllables.

If I could, I would leave Selby-Harrison out of the book altogether, but to do so would render unintelligible the whole sequence of events which resulted from the discovery of that text in First Timothy.

Thus one can no longer change anything in Italian, Spanish, English, French, without corrupting them; the reason is clear: it is that one would soon render unintelligible the books which provide the instruction and the pleasure of the nations.

This idea had for its result to render unintelligible for the Italian public the alliance of Italy with the Central Powers, sterilized and perverted through not being boldly applied by Italy to the affairs of the Mediterranean and of the Levant.