formidable obstacle
[/fərˈmɪdəbəl ˈɑbstəkəl/]
noun phrasepl: formidable obstacles
obstáculo formidável
1. a very difficult, challenging, or intimidating problem or barrier that is hard to overcome
The language barrier proved to be a formidable obstacle for the new immigrants.
A barreira linguística provou ser um obstáculo formidável para os novos imigrantes.
2. a significant impediment or hindrance that requires substantial effort to surpass
Climate change represents a formidable obstacle to sustainable development.
A mudança climática representa um obstáculo formidável para o desenvolvimento sustentável.
This phrase is widely used in both American English and Brazilian Portuguese in business, academic, and journalistic contexts to describe significant challenges. In Brazil, it's common in formal discourse about economic, political, or social issues. In the USA, it's frequently used in news reports and policy discussions. The term conveys respect for the magnitude of a problem while maintaining professional tone.
NYC Slang
a tough nut to crack / a major blocker
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