120 entries under significant topic. ×

42
substantial(adjective, great, reasonable, fair, importance)
31
large(adjective, great, big, important)
29
big(adjective, great, importance, big, heavy)
21
important(adjective, big, heavy, important, powerful)
17
consequential(adjective, importance, big, heavy, important)
17
momentous(adjective, importance, big, heavy, important)
16
material(adjective, importance, big, heavy, important)
16
meaningful(adjective, importance, big, heavy, important)
16
sizable(adjective, great, big, substantial)
16
weighty(adjective, importance, big, heavy, important)
12
serious(adjective, importance, big, heavy, important)
11
distinguished(adjective, important, substantial, large)
10
essential(adjective, importance, big, important)
10
major(adjective, important, substantial, large)
9
appreciable(adjective, reasonable, substantial, large)
9
extensive(adjective, great, big, substantial)
9
noticeable(adjective, clear, substantial, large)
8
sensible(reasonable, important, substantial, generous)
8
strong(powerful, large, greatness, forceful)
7
generous(adjective, great, big, substantial)
10 years ago|22k views|share |citing 
APASmart Define. (2016). considerable thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/considerable/thesaurus/synonyms
ChicagoSmart Define. 2016. "considerable thesaurus" https://smartdefine.org/considerable/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, considerable thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/considerable/thesaurus/synonyms>.
MLASmart Define. "considerable thesaurus" 29 March 2016. Web. 21 September 2026. <https://smartdefine.org/considerable/thesaurus/synonyms>