unharmfulness
The quality of not being harmfulThe quality of not being harmful.
Meaning
1 senses(uncountable)The quality of not being harmful.
Origin
From unharmful + -ness.From unharmful + -ness.
Wiktionary, CC BY-SA 4.0 · source
Lessons for this word
1 lessons- A1Countable and uncountable nouns — Because it can be uncountable