The phrase "applies oneself to" typically implies effort, engagement, and focus towards a particular goal or task. However, there are several antonyms or contrasting words that can be used to describe a lack of application or laziness. These include terms such as idling, slacking off, shirking, procrastinating, neglecting, or avoiding. Such words imply a lack of effort or discipline and may suggest a disregard for the importance or value of the task at hand. It is important to apply oneself diligently to important tasks and goals, rather than succumbing to the temptation of laziness and apathy.