WordNet records no synonym and no antonym for hasdrubal. It is the only member of its synset, which is common for technical, taxonomic and single-sense vocabulary — there is no other English word that means the same thing. The broader and narrower terms below are the useful relations in that case.
Counts are distinct word forms across every sense. A synonym that appears under three senses is counted once here and shown three times below, under each sense it belongs to.
general who commanded a Carthaginian army in Spain; joined his brother Hannibal in Italy and was killed by the Romans at the battle of Metaurus River (died 207 BC)
Synonyms, antonyms and the broader and narrower relations for hasdrubal come from Princeton University’s WordNet. Full sources and licences.