unrequested
abandoned
arbitrary
arrogant
autonomous
deserted
discretional
discretionary
disregarded
elective
free
free will
gratuitous
groundless
half-done
ignored
impregnable
impudent
independent
indomitable
inexpugnable
invulnerable
laid aside
left undone
missed
neglected
nonmandatory
offered
omitted
optional
overbearing
overlooked
passed by
passed over
passed up
pigeonholed
presumptuous
proffered
put aside
self-acting
self-active
self-determined
self-determining
shunted
sidelined
sidetracked
slighted
spontaneous
stalwart
stout
strong
but
camp meeting
class-meeting
question
unannounced
unanswered
unasked-for
uncared
undesired
unescorted
unheralded
unhoped
uninvited
unlooked-for
unneeded
unsayable
unsolicited
unsought
unthought
unvalued
unwelcome
unwelcomed
unwilled