Translation

完璧な / 申し分ない / 完全な

Meaning

Perfect means having no faults or being exactly right for a purpose. It can describe performance, timing, condition, fit, or suitability. The trap is overusing perfect when English speakers would use good, fine, or suitable.

Examples

• その靴はサイズが完璧でした。
  The shoes were a perfect fit.
• 今が始めるのにぴったりの時期です。
  Now is the perfect time to start.