1.adjectiveIn the capacity of a matron; serving as a housekeeper or head nurse.
"The matronly woman cared for the sick orphan."
2.adjectiveExuding the authority, wisdom, power, and intelligence of an experienced woman.
"...the matronly upper arms girls know about life and love and losing... Janeane Garofalo"
3.adjectiveHaving the appearance of a mature woman, often of larger physical stature and somewhat unkempt or dowdy.
"Gone is her matronly gray frizzy hair and those bushy brows, frumpy frock and old lady pearls. https//web.archive.org/web/20090427074230/http://latimesblogs.latimes.com/thedishrag/2009/04/susan-boyle-gets-a-makeover-is-she-going-hollywood-already.html"