acidic

adjective

acid·​ic ə-ˈsi-dik 

a-

1

: acid-forming

2

: acid

Synonyms of acidic

• acid
• sour

Examples of acidic in a Sentence

The soil in our garden is very acidic.

the acidic water of a polluted lake

Recent Examples on the Web

Lime green piping traced an aubergine silk skirt; flashes of acidic color appeared on necklines and linings. — Anna Cafolla, Vogue, 21 Sep. 2026

Sweet and juicy, brightly acidic oranges are one of our favorite fruits. — Stacey Lastoe, Southern Living, 20 Sep. 2026

Editor Cam McLauchlin never cuts them into mere blitzes of limbs and blood, though DP Katelin Arizmendi’s acidic palette of yellows, greens and corporeal streaks of red does lend the realism a kind of pop-art splendor. — Guy Lodge, Variety, 14 Sep. 2026

Opt for rich, sandy, loam soil with a slightly acidic to neutral pH level. — Michelle Mastro, Martha Stewart, 8 Sep. 2026

Word History

Etymology

acid entry 1 + -ic entry 1

First Known Use

1866, in the meaning defined at sense 1

Rhymes for acidic

• davidic
• fluidic
• hasidic

Kids Definition

acidic

adjective

acid·​ic ə-ˈsid-ik 

a-

1

: acid-forming

2

: acid

Medical Definition

acidic

adjective

acid·​ic ə-ˈsid-ik, a- 

1

: acid-forming

2

: acid