rigidest
Least able to bend
Rigidest is the superlative of rigid—the most stiff, inflexible, or unyielding.
It applies to physical objects the rigidest material we tested and to abstract qualities like rules or personalities He was the rigidest disciplinarian in the school.
The form is somewhat awkward; most rigid often sounds more natural.
Not easily bent
- hardFirm or demanding
- solidFirm matter state
- inflexibleUnable to bend
- unbendingRefusing to change position
unyielding · inelastic · sturdy · resistant · taut · firm · immovable · reinforced
Stubbornly refusing to yield
- obstinateFirmly refusing to yield
- intransigentRefusing to compromise
- uncompromisingRefusing to yield ground
- immovableIncapable of being shifted
stubborn · obdurate · implacable · resolute · steadfast · unbending · tenacious · dogged
Principles governing behavior
- regulationsEnforced rules and standards
- disciplineTrained self-control or specialty
- enforcementCompelling compliance with rules
- stringentSeverely exact and demanding
draconian · exactness · precision · meticulous · rigorous · conformity · authoritarian · orthodoxy
stiff
Not easily bent
- hardFirm or demanding
- solidFirm matter state
- inflexibleUnable to bend
unbending · unyielding · inelastic · sturdy · resistant · taut · firm · immovable · reinforced · braced
adamant
Stubbornly refusing to yield
- obstinateFirmly refusing to yield
- intransigentRefusing to compromise
- uncompromisingRefusing to yield ground
immovable · stubborn · obdurate · implacable · resolute · steadfast · unbending · tenacious · dogged · unwavering
rules
Principles governing behavior
- regulationsEnforced rules and standards
- disciplineTrained self-control or specialty
- enforcementCompelling compliance with rules
stringent · draconian · exactness · precision · meticulous · rigorous · conformity · authoritarian · orthodoxy · puritanical
austere
Severely simple and unadorned
unsmiling · formal · stiff · sober · stark · forbidding · unsparing · humorless · steely · stony
fragile
Easily broken or damaged
crumbly · shatterable · crisp · splintery · friable · crackable · glassy · ceramic · porcelain · chalky