A countess's male counterpart is a count or an earl (equivalent British nobility).
(It's not really an opposite, just the opposite gender.)
Countess---Masculine: CountFeminine: Countess
The singular possessive form is countess's.
An earl is a title for a male person, there is no equivalent for this title for a female. The female partner of an Earl (or a female Earl) was called Lady. If she also held the title herself then she was called the Earl of whatever place.
The word 'countess' is a gender specific noun for a female. The corresponding gender specific noun for a male is 'count'.
lass/lad - dog/bitch - niece/nephew - fiance/fiancee - tiger/tigress - nun/priest - count/countess - master/mistress
Countess---Masculine: CountFeminine: Countess
Countess is the opposite gender for earl.(I think).
Dutchess would be the opposite of Earl.
The wife of an Earl is called a Countess.
meaning for Countess
The Countess was created in 1860.
Countess Vaughn's birth name is Countess Danielle Vaughn.
By marrying a count or countess.
Countess of Dufferin was created in 1872.
Blake Countess was born in 1993.
Countess Leon was born in 1798.
Countess Leon died in 1881.