necessary.1a.aRiachtanach. It is necessary to do it, caithfear a dhéanamh; ní mór é a dhéanamh. It is necessary for him to return, ní foláir, is éigean, ní mór, dó teacht ar ais; caithfidh sé teacht ar ais. It is not necessary, níl aon chall leis; níl aon ghá leis. I shall do everything necessary to ..., déanfad gach rud is gá le ... To make all necessary arrangements, gach socrú dá bhfuil riachtanach a dhéanamh. Everything necessary, gach a bhfuil ag teastáil. To make it necessary for s.o. to do sth., a chur d'iallach ar dhuine rud a dhéanamh; tabhairt ar dhuine rud a dhéanamh. If necessary, más riachtanach; más gá. Not to do more than is absolutely necessary, gan ach, thar, an lomriachtanas a dhéanamh. b(Toradh) dosheachanta. 2s.aUsu. pl.The necessaries of life, cuid f an riachtanais. Bare necessaries, na bunriachtanais. A car is a necessary of life nowadays, ní féidir teacht gan carr ar na saolta seo. Household necessaries, acraí mpl tí. bF: To do the necessary, (i) an beart a dhéanamh; (ii) an dolaidh a íoc. necessarily, adv.It is necessarily . . ., caithfidh sé go ... What he says is not necessarily what he thinks, ní gá gur mar a chéile a chuid cainte agus a bhfuil ina cheann.