past mistress
noun
: a woman who is proficient or thorough in some particular respect : adept
a past mistress of storytelling 
Newsweek
Newsweek
Word History
Etymology
past (as in past master) + mistress
- Argenteuil
- argenteum
- argentian
- argentiferous
- Argentina
- argentinae
- argentinas
- argentine
- Argentine ant
- argentinean
- argentineans
- argentines
- argentinian
- argentinians
- Argentinidae
- argentinidaes
- argentino
- argentinosaur
- argentinosaures
- argentinosaurs
- Argentinosaurus
- argentinosauruses
- argentite
- argentites
- argento-