"Study at tear" has a variety of synonyms that can be used depending on the context. For instance, one can say "study relentlessly" to indicate an intense and unwavering commitment to learning. Other synonyms include "study diligently," "study assiduously," or "study fervently." These words suggest a deep-seated desire to acquire knowledge and imply a meticulous approach towards learning. Additionally, "study tirelessly," "study exhaustively," or "study ceaselessly" indicate a willingness to put in long hours and effort to master a subject. Overall, the synonyms for "study at tear" depict a tenacity and determination that separates the diligent student from a passive one.