"More leechlike" refers to someone or something that has intensified its leechlike qualities. Some synonyms for this expression could be "more parasitic," "more bloodsucking," "more vampiric," or "more rapacious." These words all express a sense of taking or draining resources from others without giving back, which is what being leechlike entails. Someone or something that is "more leechlike" could also be described as "more clingy," "more needy," or "more dependent," as these words connote a similar idea of taking without reciprocating. In any case, all of these synonyms suggest a negative quality associated with being overly reliant on others for one's own benefit.