anticipate
avert
awe
bar
beat down
cast down
chill
damp
dampen
dampen the spirits
darken
dash
daunt
debar
deflect
deject
demoralize
depress
deter
disappoint
discontent
discourage
disgruntle
disparage
dispirit
displease
dissatisfy
estop
exclude
faze
fend
fend off
forbid
foreclose
forestall
help
keep from
keep off
knock down
lower
lower the spirits
obviate
oppress
overawe
preclude
disheartened
disheartening
disheartens
hearten