6
long run(noun, time)
4
struggle(noun, trouble, fight, test, suffering)
2
enduring
2
extended
2
far
2
journey(act, travelling)
2
long
2
long-drawn-out
1
apogee
1
ceaseless
1
chronic
1
confirmed
1
deathless
1
deep
1
deep-rooted
1
deep-seated
1
deep in thought
1
endless
1
entrenched
1
eternal
10 years ago|2.5k views|share |citing 
APASmart Define. (2016). long haul thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/long_haul/thesaurus/synonyms
ChicagoSmart Define. 2016. "long haul thesaurus" https://smartdefine.org/long_haul/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, long haul thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/long_haul/thesaurus/synonyms>.
MLASmart Define. "long haul thesaurus" 26 February 2016. Web. 20 September 2026. <https://smartdefine.org/long_haul/thesaurus/synonyms>