Parsing inflected forms may not always work as expected. If the following does not give the correct word, try Latin Words or Perseus.
bellātōrĭus, a, um, adj. [bellator], warlike, martial, useful in warlike expeditions (very rare): jumenta, Amm. 23, 5, 13: pugnax et quasi bellatorius stilus, a pugnacious, polemic style, * Plin. Ep. 7, 9, 7.