anomaly
bitter-ender
brawler
crosspatch
defeatist
defendant
denier
diehard
disputant
dissenter
dissentient
dissident
freak
individualist
inner-directed person
intransigent
irreconcilable
last-ditcher
litigant
misfit
negativist
nonconformist
noncooperator
objector
obstructionist
obstructive
oddball
opposer
oppositionist
pessimist
plaintiff
prophet of doom
protester
quarreler
refuser
resister
sceptic
scrapper
sport
wrangler
obstructer
obstructor
thwarter
technophobe
Breyer
Dreyer
Mayer
Sayer
Speyer
assayer
bayer
brayer
conveyer
conveyor
doomsayer
dreyer
gayer
grayer
layer
mayor
multilayer
payer
player
prayer
preyer
purveyor
sauter
sayer
slayer
soothsayer
sprayer
stayer
strayer
surveyor
yea-sayer