1. A goal or objective that is not feasible, realistic, or achievable given practical constraints, resources, or circumstances
His impractical aim of learning ten languages in one year was doomed to fail.
Seu objetivo impraticável de aprender dez idiomas em um ano estava fadado ao fracasso.
2. An unrealistic target that lacks consideration for actual conditions, limitations, or available means
The startup had an impractical aim of becoming profitable within three months.
A startup tinha um objetivo impraticável de se tornar lucrativa em três meses.