Synonyms|380Antonyms|79|Broader|7Narrower|21Related|160

125 entries under noun topic. ×

3
sturdiness(support, control, change, strength)
3
tower(hold, keep, top, stronghold)
3
ward(cover, position, guard, shield)
2
aplomb(support, control, strength, balance)
2
asylum(defense, refuge)
2
dungeon
2
durability(support, control, strength, balance)
2
equilibrium(control, balance, firmness, stability)
2
fasthold(hold, keep, stronghold, seat)
2
fleetness
2
hurriedness
2
immobility(support, control, strength, balance)
2
immovability(support, control, strength, balance)
2
peel(hold, keep, stronghold, seat)
2
protection(cover, position, guard, shield)
2
refuge(defense, refuge)
2
shelter(cover, position, guard, shield)
2
solidity(support, control, strength, balance)
2
sureness(support, control, change, strength)
1
abruptness
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APASmart Define. (2015). fastness thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/fastness/thesaurus/synonyms
ChicagoSmart Define. 2015. "fastness thesaurus" https://smartdefine.org/fastness/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, fastness thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/fastness/thesaurus/synonyms>.
MLASmart Define. "fastness thesaurus" 10 April 2015. Web. 29 September 2026. <https://smartdefine.org/fastness/thesaurus/synonyms>