gáibhtheach
Definitions (by source)
perilous. gan ghleó gháibhtheach, 3261.
Poems on the O'Reillys. Editor: James Carney.
dangerous, 517, 7877; terrible (of screaming, weeping), 3908, 5574, 6705
Trí Bior-Ghaoithe an Bháis: The Three Shafts of Death. Editor: Osborn Bergin.