nonattendance
miss
skip
cut
nonadmission
inattendance
unattending
unattendance
nonattending
skipper
nonappearance
nondeparture
DNA
unattended
nonattendant
unenrolled
truancy
hooky
absentiality
nonenrolled
audiencelessness
noncommencement
nondeliberation
nonresumption
inobservance
nonembarkation
nonarrival
underparticipation
unarrival
nonpreparation
nonevaluation
nonexhibition
nonconsideration
nonencounter
unselectability
nonreception
noneducational
pretermission
experiencelessness
go over like a lead balloon
unadmitted
neglect
absenteeism
not-thereness
ill-received
no-show
underattended
noncompearance
nonvisitation
nonattendee