Translation:The father is not impatient.
There is actually a word tuv which means, "be patient". So there are three ways to say "be patient", but with subtle differences. Context may play a bigger part in how one would interpret these than the choice of word or suffix, but here's the impression I get from the words alone:
tuv - ("patient") a quality that a person has, if you say this about someone then they probably just naturally keep their cool.
boHbe' - ("not impatient") perhaps there is a reason to expect them to be impatient, but they are keeping their cool anyway.
boHHa' - ("un-impatient") perhaps for some reason they are actually attempting to be impatient, but they are failing and really sort of being patient anyway.