物凄い

1. Origins, structure, and basic meaning

• Structure: 物凄い (ものすごい) is a colloquial adjective for an extremely great or intense degree. Both examples use it before a noun.
• Basic usage: 物凄い風 intensifies the wind at a summit; 物凄い速さ intensifies the speed of running downhill.

2. Common pitfalls and similar expressions

• Intensity of a natural force and magnitude of speed
  • The same attributive form measures the force of 風 and the magnitude of 速さ. Its core is an astonishing degree, not an inherently positive or negative evaluation.