硬い

hard; solid; tough; stiff

Meaning

  1. adj-i
    hard; solid; tough
  2. adj-i
    stiff; tight; wooden; unpolished (e.g. writing)
  3. adj-i
    strong; firm (not viscous or easily moved)
  4. adj-i
    safe; steady; honest; steadfast
  5. adj-i
    obstinate; stubborn
  6. adj-i
    bookish; formal; stuffy

Example sentences