[ verb an-ti-deyt, an-ti-deyt; noun an-ti-deyt ]
/ verb ˈæn tɪˌdeɪt, ˌæn tɪˈdeɪt; noun ˈæn tɪˌdeɪt /

verb (used with object), an·te·dat·ed, an·te·dat·ing.


a prior date.

Origin of antedate

1570–80; earlier antidate < Middle French antidater, derivative of antidate a date earlier than the true date (by association with anté- ante-), originally a date put in place of another date; see ante-, date1

Can be confused

anecdote antedate antidoteantedate predate postdate Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for antedate

British Dictionary definitions for antedate


verb (ˈæntɪˌdeɪt, ˌæntɪˈdeɪt) (tr)

to be or occur at an earlier date than
to affix a date to (a document, etc) that is earlier than the actual date
to assign a date to (an event, etc) that is earlier than its previously assigned date
to cause to occur sooner

noun (ˈæntɪˌdeɪt)

an earlier date
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