abase
abate
affright
alarm
attenuate
beat down
bend
blunt
break
break down
bring low
bring to terms
browbeat
bulldoze
bully
castrate
clamp down on
coerce
compel
conquer
cow
cramp
cripple
crush
curdle the blood
damp
dampen
dash
daunt
deaden
debilitate
degrade
demasculinize
demoralize
deplete
desex
desexualize
despotize
devitalize
disgarrison
dishearten
disqualify
disquiet
domineer
domineer over
drain
dull
effeminize
emasculate
unmanned
unmanning
enervate
faze
unnerve
unsettle
unmans
airborne
amphibious
deep space
defenseless
disable
expendable
fixed-wing
high-altitude
interplanetary
long-range
nuclear-powered
obsolete
orbital
pilotless
recon
resupply
robotic
rotary-wing
stationary
unattended
undetectable
unidentified
unpiloted
valueless