Harmlessness is a related term of purity.
As a noun harmlessness
is the characteristic of being harmless; the absence of harm.
As a proper noun purity is
from the virtue purity.
harmlessness
English
Noun
(-)
The characteristic of being harmless; the absence of harm.
Synonyms
* innocence
Antonyms
* harmfulness
* nocence
purity
English
Noun
(purities)
The state or degree of being pure.
Antonyms
* impurity