Resolute
Adj.
Determined, firm
Emphatic
Adj.
Forceful
Endeavor
V.
To make an attempt
Endure
V.
To suffer, to put up with something
Withstand
V.
To resist, to stand up to do thing
Resilient
Adj.
Springing back, recovering quickly
Robust
Adj.
Strong, sturdy
Pragmatic
Adj.
Practical, useful
Fret
V.
To worry
Adversity
N.
Hardship, difficulty
Plight
N.
A difficult or extremely unpleasant situation
Predicament
N.
A difficult situation
Rigor
N.
Something very hard to endure
Strenuous
Adj.
Requiring hard effort or energy
Toil
V.
To labor, to work hard
Tedious
Adj.
Boring, tiring
Trek
N.
A very long journey on foot
Grimace
N.
A facial expression indicating pain
Wince
V.
To flinch in fear or pain
Daunting
Adj.
Discouraging, inspiring fear