It's a well-known fact that there's only one London Underground station that doesn't contain any letters from the word "Mackerel". It's "St John's Wood".

I can now exclusively reveal that the same fact is true for the same station for the following 8-letter words:

acervuli
acquiree
acquirer
allergic
appealer
bagpiper
barbicel
baulkier
bearlike
breccial
brucella
calliper
cameleer
capabler
carceral
carriage
cavalier
caviller
celeriac
cellarer
cellular
cerebral
cervical
clammier
claqueur
clerical
crablike
craggier
creakily
creamily
crevalle
cribbage
curarize
curbable
cyclecar
cymbaler
empyreal
exemplar
fireclay
flackery
flappier
flickery
flypaper
freakily
furculae
graceful
graecize
grappler
grimacer
imperial
larruper
lifecare
mackerel
malarkey
micellar
millrace
palpebra
parallel
paralyze
parklike
parleyer
pearlier
peculiar
pellagra
perigeal
pillager
pluckier
plumeria
preamble
preapply
preaxial
precaval
preclear
prefixal
preflame
prelegal
preplace
prepupal
prevalue
primeval
pyrexial
quackier
reapable
recaller
repealer
replacer
rippable
umpirage
valkyrie
vicarage
yarmelke
yarmulke