hard Synonyms - page 6
unalterable
unappeasable
zealously
labor-intensive
laboured
laboriously
hardtack
leaner
leatherlike
butch
unenergetically
tiresomely
like mad
unbreakable
lockstep
unloving
bullnecked
red-blooded
knockabout
keystroke
vigorously
unadaptable
addictive
habit-forming
knockout
aggressively
serialize
assiduously
hardball
aversive
unenviable
gruelling
seriously
severely
Horney
durum
congealed
difficulty
diligent
diligently
dimensional
dire
disfranchised
distressful
doggedly
dour
draconian
draconic
draining
drastic