Synonyms|350Antonyms|57|Broader|18Narrower|6Related|159
2
critical
2
crucial
2
fragment(noun, sight, historical)
2
fundamental
2
identification
2
innovative(adjective, momentous, milestone)
2
juncture(noun, circumstance)
2
lighthouse
2
line
2
lodestar(information, suggestion, indication, inspiration, signal)
2
major
2
marches
2
museum(noun, sight, historical, notable relic)
2
notable
2
noteworthy
2
pharos
2
pivotal
2
pointer(noun, information, influence, indication, key)
2
precedent-setting
2
seminal
For more, visit Landmark on Power Thesaurus
11 years ago|9.7k views|share |citing 
APASmart Define. (2015). landmark thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/landmark/thesaurus/synonyms
ChicagoSmart Define. 2015. "landmark thesaurus" https://smartdefine.org/landmark/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2015, landmark thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/landmark/thesaurus/synonyms>.
MLASmart Define. "landmark thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/landmark/thesaurus/synonyms>