Inhumaneness and Unmercifulness

Inhumaneness noun - The quality of lacking compassion or consideration for others.

Unmercifulness and inhumaneness are semantically related. In some cases you can replace term "Unmercifulness" with "Inhumaneness", this nouns are similar.

Unmercifulness noun - Inhumaneness evidenced by an unwillingness to be kind or forgiving.

Inhumaneness and unmercifulness are semantically related. Sometimes you can use "Inhumaneness" instead a noun "Unmercifulness".