The phrase "impeccable record" means that someone has an excellent and flawless history or track record of accomplishments or behavior. Full definition
Even drivers with impeccable records can benefit enormously from shopping around a little. (autoinsurancequotes.com)
Insurance companies are starting to turn homeowners down because of the breed of dog they own, regardless of how impeccable a record that dog has. (poochprofessor.com)
Kuo is known for his almost impeccable record of predictions for Apple's upcoming products. (news.softpedia.com)