Fierce
Heard in Galway, Cork, Kilkenny, Donegal, Cavan, Mayo, Offaly, Roscommon, Meath, Waterford and Kildare
An intensifier meaning exceptionally or intensely.
Tis fierce cold outside today, you'd want three jumpers on you!
The weather outside is remarkably frigid today, one requires three pullovers at the very least.