rigid Synonyms

inflexible strict stiff unbending fixed stern severe set austere rigorous unyielding tight sustained stubborn tense taut steely victorian tighter tyrannical unwarped unswayable unshakable unrelenting tough unmovable unflexible uncompromising blimpish strong stringent sound solid situated single-minded settled sessile self-willed sectarian scientific stable starched stretched strait-laced stilted stiff-necked stiffish steadfast staying static