first olive out of the bottle
bog
setback
foreset
run into a brick wall
impediment
embuggerance
slow
obstacle-ridden
showstopper
treadmill
hang-up
let
hinder
embarrass
blockade
obstruct
intermezzo
zwischenzug
stymy
stymie
block
underfoot
hurdle
hurdlesome
halt
stickability
grind to a halt
roadblock
hoop
difficulty
barrier
freeze
person from Porlock
cramp
short-circuit
halter
hitch
strangle
hamper
stumblingly
drag
ne plus ultra
retarding
mark time
retard
trammelling
trammeling
stumblingblock
Hollywooding
dead set
a stitch in time saves nine
retardation
bugbear
set back
toehold
Porlockian
stall
abort
deathblow
nose
impede
eventually
two-blocked
if at first you don't succeed, try try again
buy time
snag
come to a stop
escape
rub
bay
sophomore slump
wallcrossing
workaround
scrape through
stumbling block
preventive
go hard or go home
reblockage
in someone's way
retarded
in the way
stand in the way
tough sledding
Canutism
protraction
interfere
on
cold feet
filibuster
get around
static
culminate
frustrating