Respuesta :

Answer:

lifelessly, casually, halfheartedly, sluggishly, idly, lazily, spiritlessly, Desultorily, indolently, wearily, sleepily, listlessly, lackadaisically, tiredly, languidly.

Explanation:

these are some antonyms for laboriously which means :in a way that takes considerable time and effort.

Answer:

Antonym is the opposite of something the definition of laborious means (especially of a task, process, or journey) requiring considerable effort and time.

Explanation:

done.