Definitions:

1. Characterizes something that involves considerable effort or exertion, relecting the amount of hard work required to complete a task. NOUN
   • The laboriousness of the project was evident in the long hours and intense concentration needed to complete it.
2. Implies that the task or process is slow, detailed, and painstainking, often requiring meticulous attention and prolongued effort. NOUN
   • The laboriousness of handcrafting each piece of furniture added to its value, but also made the process exhausting.
3. Suggests that completing the task requires persistence, endurance, and patience due to its challenging nature. NOUN
   • The laboriousness of studying for the final exams paid off when she received top grades.

Synonyms:

• arduousness
• complication
• difficulty
• dilligence
• hardship
• strain
• toughness
• trouble