Horrendous is a thoroughbred horse born in Australia in 2018. Race horse Horrendous is by Honorius (AUS) out of Iris In The Glen (AUS) , trained by Deanne Taylor. Horrendous form is available here. Owned by B A McDougall, D W Laidlaw, Mrs E A Laidlaw, D E Brady, Mrs W J Brady, J A Hawker, T I Bibby, M G Brennan, I R Armstrong & Mrs H Armstrong.