IPA: /aɪˈdɛntɪkəlnəs/
KK: /aɪˈdɛntɪkəlnəs/
The condition of being exactly the same as something else.
The identicalness of the two paintings made it hard to tell them apart.
Identicalness → It is formed from "identical" (from Latin "identicus", meaning the same) and the suffix "-ness" (meaning the state or quality of). The word "identicalness" refers to the state of being the same or identical.
Think of 'identical' meaning 'the same' and '-ness' indicating a state. This helps you remember that 'identicalness' refers to the quality of being the same.