| Subject | English | Spanish |
| med. | abdominal rigidity | rigidez abdominal |
| med. | abdominal rigidity | vientre en tabla |
| med. | abdominal rigidity | contractura abdominal |
| textile | bending rigidity | rigidez a la curvatura |
| med. | cadaveric rigidity | rigidez cadavérica (rigor mortis) |
| med. | cerebellar rigidity | rigidez cerebelosa |
| law | constitutional rigidity | rigidez constitucional |
| textile | crimp rigidity | elongación de rizado |
| IMF. | downward rigidity | rigidez |
| econ. | downward rigidity | rigidez a la baja |
| IMF. | downward rigidity | adhesividad |
| IMF. | downward rigidity | inflexibilidad a la baja |
| IT | end point rigidity | rigidez del terminal |
| med. | extreme abdominal rigidity | vientre de madera |
| transp., construct. | flexural rigidity of a plate | rigidez de una chapa |
| life.sc. | frost rigidity | rigidez ocasionada por la helada |
| med. | heat rigidity | rigidez por calor |
| lab.law. | institutional rigidity | rigidez institucional |
| IMF. | labor market rigidity | rigidez del mercado laboral |
| fin., social.sc. | labour market rigidities | rigideces en el mercado laboral |
| med. | lumbar rigidity | rigidez lumbar |
| earth.sc. | magnetic rigidity | rigidez magnética |
| phys. | modulus of rigidity | módulo de Coulomb |
| tech. | modulus of rigidity | módulo a esfuerzo cortante |
| phys. | modulus of rigidity | módulo de elasticidad de deslizamiento |
| tech. | modulus of rigidity | módulo de cizalladura |
| tech. | modulus of rigidity | módulo de elasticidad transversal |
| tech. | modulus of rigidity | módulo de cizallamiento |
| earth.sc., tech. | modulus of rigidity | módulo de rigidez |
| earth.sc., tech. | modulus of rigidity | módulo de cortadura |
| med. | muscle rigidity | espasticidad |
| gen. | muscle rigidity | aumento de la resistencia muscular frente a los movimientos pasivos |
| med. | muscular rigidity caused by exposure to cold | rigidez por frío |
| med. | muscular rigidity of abdominal wall | rigidez muscular de la pared abdominal |
| med. | nuchal rigidity | rigidez de la nuca |
| anim.husb. | post-mortem rigidity | rigidez cadavérica |
| anim.husb. | post-mortem rigidity | rigor mortis |
| med. | post-mortem rigidity | rigidez cadavérica (rigor mortis) |
| IMF. | price rigidity | rigidez de precios |
| med. | pulmonary rigidity | rigidez pulmonar |
| fin., social.sc. | rigidities in the labour market | rigideces en el mercado laboral |
| earth.sc., tech. | rigidity modulus | módulo de elasticidad transversal |
| earth.sc., tech. | rigidity modulus | módulo de rigidez |
| earth.sc., tech. | rigidity modulus | módulo de cortadura |
| industr., construct., chem. | rigidity modulus test | ensayo de módulo de rigidez |
| med. | rigidity of the bladder | rigidez de la vejiga |
| transp. | rigidity of the track | rigidez de la vía |
| ballist. | rigidity of the trajectory | rigidez de la trayectoria |
| transp. | rotor rigidity | rigidez del rotor |
| IMF. | structural rigidity | inflexibilidad estructural |
| IMF. | structural rigidity | rigidez estructural |
| gen. | torsional rigidity | rigidez a la torsión |
| pack. | torsional rigidity | resistencia a la torsión |
| IMF. | wage rigidity | rigidez salarial |