skunk at a garden party
ignoree
shrinking violet
nonexclusion
exclusionarily
sequestrate
withdraw
periphractic
seclude
sequester
outsider
cog
entirely
foreigner
exclusionism
discontinuer
personlessness
welcomeless
on the outside, looking in
piggy in the middle
exclus
invisible
excludedness
deindividuation
absent
alienated
excludee
bit player
aberrant
disqualification
enemy
ape
lone hand
lone wolf
backwoodsman
loner
noli me tangere
pococurantist
single-handed
outsiderish
fream
excludability
outsiderly
nonavoidance
isolatee
nucleus
core
out of it
reluctant dragon
support bubble
unintelligentsia
core group
from
odds and sods
exclusive
non-involvement
non-engagement
nonparticipation
unspecificness
exclusionistic
unwished-for
exclusory
pay no mind
unwashed masses
ostracism
unalive
asocial
unsubscriber
omissibility
heteronymy
reindeer games
galere
antisocial
moony
omittability
rogue's gallery
truant
leper
closure
civilian
unsympathizer
out of line
the cobbler's children are the worst shod
empty chair
the shoemaker's children go barefoot
nonsympathizer
excusable
segregated
Muggle
weak sister
buttinsky
avoider
ignorer
sideman
omissively
absenteeism
nonpeer
nonentity