IPA: /ˈkænsərəsli/
KK: /ˈkænsərəsli/
In a way that is related to or characteristic of cancer, often implying harmful or destructive effects.
The tumor grew cancerously, spreading to nearby tissues.
Cancerously → It is formed from "cancer" (from Latin *cancer*, meaning crab or tumor) and the suffix "-ously" (meaning in a manner of). The word "cancerously" describes something that is in a manner relating to cancer, often implying malignancy or harmfulness.
Think of the word 'cancer' which refers to a harmful disease, and remember that 'cancerously' means in a manner that relates to or resembles cancer.