tireless (adjective) tireless: determined
Sinonime: active, ball of fire,
eager,
energetic,
enthusiastic,
grind, hard-working, hyper,
incessant,
indefatigable,
industrious, jumping, on the go,
perky,
persevering,
resolute,
steadfast,
strenuous, unflagging, untiring, unwearied, unwearying,
vigorousAntonime: beat,
tired, unenthusiastic,
weary, worn out