perseverans [ntis];
contumax [cis];
assiduus [a, um] (hostis);
cervicatus [a, um];
cervicosus [a, um];
animosus [a, um] (corruptor);
tenax [cis];
pertinax [cis];
pervicax [cis];
offirmatus [a, um];
obstinatus [a, um];
lentus [a, um];
+ упорное молчание obstinatio taciturna;