adamant 7 Associations

adamantine inexorable intransigent inflexible (similar term)

adamantine 10 Associations

adamant inexorable intransigent inflexible (similar term)

adaptable 9 Associations

adjustable (similar term) all-mains (similar term) convertible (similar term) elastic (similar term) flexible (similar term) pliable (similar term) pliant (similar term)

bendable 8 Associations

pliable pliant flexible (similar term) flexile (similar term)

brassbound 10 Associations

ironclad inflexible (similar term)

die-hard 8 Associations

rock-ribbed inflexible (similar term)

double-jointed 14 Associations

flexible (similar term) flexile (similar term)

fossilised 10 Associations

fossilized ossified inflexible (similar term)

fossilized 10 Associations

fossilised ossified inflexible (similar term)

hard-core 9 Associations

hardore inflexible (similar term)

hard-line 9 Associations

hardline uncompromising (similar term) sturdy (similar term) inflexible (similar term)

hardline 8 Associations

hard-line uncompromising (similar term) sturdy (similar term) inflexible (similar term)

hardore 7 Associations

hard-core inflexible (similar term)

inexorable 10 Associations

adamant adamantine intransigent inflexible (similar term)

intransigent 12 Associations

adamant adamantine inexorable inflexible (similar term)

ironclad 8 Associations

brassbound inflexible (similar term)

limber 6 Associations

supple flexible (similar term)

limber 6 Associations

flexible (similar term) flexile (similar term)

limber 6 Associations

supple flexible (similar term) flexile (similar term)

muscle-bound 12 Associations

inflexible (similar term)