1 adjective requiring effortcrua adj3 c m udian adj c m udian- prefmaslach adj1 c m ushe made strenuous efforts to persuade themrinne sí dianiarracht áitiú orthua strenuous walksiúlóid dhian, siúl maslachstrenuous workobair mhaslach, diansaothar masc12 adjective of protest, objection, etcláidir adj c m utréan adj1 c m uhe made a strenuous protestrinne sé gearán láidirthey made strenuous denialsshéan siad go láidir é