- past perfect progressive of spiral.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Simon's mood had been spiralling downwards for weeks.
From BBC • Jun. 17, 2022
When Sir Peter came on board, costs had been spiralling and deadlines slipping because Network Rail promised major changes by 2019 that it simply could not deliver.
From BBC • Nov. 25, 2015