1. A task or undertaking that requires significant effort, skill, or problem-solving abilities and presents difficulties or obstacles to overcome
Launching a startup in a competitive market is a challenging project that requires careful planning.
Lançar uma startup em um mercado competitivo é um projeto desafiador que requer planejamento cuidadoso.
2. Work that tests one's abilities and pushes the boundaries of current knowledge or skills
The challenging project helped the team develop new technical expertise.
O projeto desafiador ajudou a equipe a desenvolver novas competências técnicas.