Definitions

1. adjective

having or showing no faults, flaws, or weaknesses; flawless

“She was an impeccant singer with a voice like an angel.”

2. adjective

perfect in manner, speech, or behavior; faultless

“He was known for being impeccant in his professional dealings.”

3. adjective

completely free from error or fault; flawless

“The company’s financial reports were impeccant and transparent.”