RichThesaurus
indefatigability
indefatigability
synonyms
perseverance
tenacity
tirelessness
staying power
determination
persistence
doggedness
pertinacity
resolution
steadfastness
stamina
endurance
grit
resoluteness
purposefulness
stickability
perseveration
resolve
obstinacy
guts
dedication
staunchness
stick-to-it-iveness
firmness of purpose
spunk
backbone
diligence
constancy
Sitzfleisch
indefatigableness
assiduity
application
continuance
commitment
pluck
fortitude
obdurateness
inflexibility
intentness
fixity of purpose
strength of will
single-mindedness
sedulousness
patience
tenaciousness
obduracy
stubbornness
strength of character
stout-heartedness
intension
more synonyms
indefatigability
antonyms
laziness
lethargy
irresolution
apathy
lack
lack of resolve
pusillanimity
indolence
weak-mindedness
weakness
carelessness
indecision
half-heartedness
impatience
idleness