[noun] [C], [adjective] [not gradable] [esp. US] - (of) games played after the end of the regular sports seasonThe three division winners and the second-place team with the best record will advance to the postseason.The Indians have won three straight one-run games in the postseason, including Tuesday's 1-0 state semi-final victory over Woodbridge.The Garden State Bowl kicks off the postseason college football games.A new team can become a postseason power very quickly.
POSTSEASON
Meaning of POSTSEASON in English
Cambridge English vocab. Кембриджский английский словарь. 2012