pure

pure /ˈpjɚ/ adjective
purer; purest
pure
/ˈpjɚ/
adjective
purer; purest
Britannica Dictionary definition of PURE
[also more pure; most pure]
1 
: not mixed with anything else
2 
: clean and not harmful in any way
3 
: having a smooth and clear sound that is not mixed with any other sounds
4 
always used before a noun : complete, total — used for emphasis
5 
: morally good : free from sexual or evil thoughts
6 
always used before a noun : relating to theory and knowledge rather than to the practical uses of something

pure and simple

: with nothing other than what has been mentioned — used after a noun or phrase to add emphasis

— pureness

noun [noncount]