perfect

Without qualification; used informally as (often pejorative) intensifiers.

“a perfect idiot”

Being complete of its kind and without defect or blemish.

“a perfect circle”

“a perfect reproduction”

Precisely accurate or exact.

“perfect timing”

Make perfect or complete.

“perfect your French in Paris!”

A tense of verbs used in describing action that has been completed (sometimes regarded as perfective aspect).