culminate
nonprogress
progresslessness
behind the curve
roadblock
let the grass grow under one's feet
nonprocessive
barrier
max out
make heavy weather
incorrigible
unachievable
unprogressing
not going anywhere
unrealizable
deadlock
undoable
standstill
bog
unattainable
dead end
stalemate
impasse
antiprogressivist
nonadvancement
antiprogress
antiprogressive
wade
unachieved
hardpressed
unadvancement
go nowhere fast
nonexponential
unreachable
close only counts in horseshoes
constipated
progressless
underfoot
unaccomplishable
come to a stop
unrealized
un-get-at-able
ungetatable
un-come-at-able
out of sight
catch
copout
gimmick
backward
in circles
unascertainable
insuperable
les jeux sont faits
rub along
exercise in futility
impossibly
dinq
ambitious
embuggerance
unsurpassable
first olive out of the bottle
run into a brick wall
inaccessible
climb up
climb
unpredictable
mount
go up
unprogress
unguaranteeable
unattainment
wing and prayer
indirectness
unfulfillably
incapability
incapableness
the end of one's rope
scrape
unattaining
toehold
ungainsayable
bog down
dead on the vine
get stuck
ungained
you can't win them all
nondemonstrable
march
go nowhere
grind to a halt
hang-up
unprogressed
nonculmination
mire
underaccomplished
spin one's wheels
insecure