unacidic
/ˌʌnækɪdɪk/Definitions
1. adjective
Lacking or free from acidity; not acidic.
“The unacidic water from the mountain spring was a welcome respite from the polluted city tap.”
2. noun
Something that is unacidic.
“The unacidic properties of the new water filter made it highly effective in removing impurities.”