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