# acidic

> English word · Adjective · IPA /əˈsɪ.dɪk/ · frequency rank #18,473

## Definitions
1. Of or relating to acid; having the character of an acid.
2. Having a pH less than 7, or being sour, or having the strength to neutralize alkalis, or turning a litmus paper red.
3. Containing a high percentage of silica-bearing minerals.

## Etymology
From acid + -ic. Doublet of acidy.

## Easily confused with
- **acids** (https://plainspell.com/en/vs/acidic-vs-acids)
- **acidity** (https://plainspell.com/en/vs/acidic-vs-acidity)
- **acid** (https://plainspell.com/en/vs/acid-vs-acidic)
- **Acadia** (https://plainspell.com/en/vs/acadia-vs-acidic)
- **acetic** (https://plainspell.com/en/vs/acetic-vs-acidic)

## Common misspellings (8)
`accidic`, `acdiic`, `acidci`, `aciddic`, `acidicc`, `aciidc`, `aicdic`, `caidic`

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/acidic