Translation Spanish English: asíduo
Dictionary: main
asíduo
adjetivo
1 assiduous,  ceaseless,  constant,  continual,  fast,  firm,  incessant,  loyal,  never-ending,  perpetual,  sedulous,  steadfast,  steady,  stiff,  truehearted,  unbendable,  unceasing,  undeviating,  unfaltering,  unremitting,  unshakable,  unwavering.