tireless
- adjective (adj)
Meaning: determined
Synonyms:
active
ball of fire
eager
energetic
enthusiastic
grind
hardworking
hyper
incessant
indefatigable
industrious
jumping
on the go
perky
persevering
resolute
steadfast
strenuous
unflagging
untiring
unwearied
unwearying
vigorous
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.