The gallant man fought well in the war.
Brave, heroic, and chivalrous are synonyms for gallant.
Yes.
With two L's. Gallant is correct.
The opposite for "selfishness" is simply "unselfishness" or "selflessness" - but "UNSELFISHNESS" is my choice. It is easier for one to be "unselfish" than to be "selfless", which would require one to be a Saint. Whereas "unselfishness" can be a normal (though uncommon) act.
He made a gallant effort.
Matt Gallant's birth name is Matthew J. Gallant.
He was a very gallant knight.
Michael Gallant was created in 2001.
The Gallant Hussar was created in 1927.
Gallant Bess was created in 1946.
Paul Gallant was born in 1944.
Paul Gallant died in 2011.
Augustin Gallant was born in 1916.
Augustin Gallant died in 1994.
Gallant Garden was created in 1996.
Benjamin Gallant died in 1921.