Collins COBUILD Advanced Learner's English Dictionary - appalling

1. Something that is appalling is so bad or unpleasant that it shocks you. They have been living under the most appalling conditions for two months. = dreadful ADJ • appallingly He says that he understands why they behaved so appallingly... ADV 2. You can use appalling to emphasize that something is very great or severe. I developed an appalling headache. ADJ c darkgreen]emphasis • appallingly It’s been an appallingly busy morning. ADV 3. see also appal