en fête

/ French (ɑ̃ fɛt) /

adverb

dressed for a festivity
engaged in a festivity

Word Origin for en fête

C19: literally: in festival
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012