资料来源 : pyDict

不出席

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Nonattendance \Non`at*tend"ance\, n.
   A failure to attend; omission of attendance; nonappearance.

资料来源 : WordNet®

nonattendance
     n : the failure to attend [ant: {attendance}]