均一

1. Origins, structure, and basic meaning

• Structure: 均一, read きんいつ, is a na-adjectival stem meaning uniform or even throughout.
• Basic usage: 均一な厚さ modifies a constant thickness; 均一に広がる adverbially describes paint spreading evenly.

2. Common pitfalls and similar expressions

• 均一な before nouns and 均一に before verbs
  • Use な for a noun's property and に for the manner of change; the quality extends across the whole area.