Acid and Basic

Opposite meaning words

Acid adjective - Causing or characterized by the one of the four basic taste sensations that is produced chiefly by acids.

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Basic is an antonym for acid in topics: bitter, bitter in words or behavior, having acidic.

Nearby Words: acidify, acidity, acidic, acidified, acidize

Basic adjective - Of or relating to the simplest facts or theories of a subject.

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Acid is an antonym for basic.

Nearby Words: base, basis, basically, basics, basicity

Basic laboratory safety techniques include diluting acids by adding the concentrated acid to water, not water to acid.

Source: Dangerous Phlebotinum Interaction
Across the Universe can be anywhere from "slightly confusing" to "incomprehensible acid trip on film", unless you're a Beatles fan and have some basic knowledge of the '60s counterculture movement.

Source: Mind Screw / Film
Half-Life spinoff Gunman Chronicles has a gun that shoots a variable amount of acid, basic and neutral liquid in form of globs.

Source: Abnormal Ammo

Cite this Source

Basic and Acid. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/acid/basic

Acid & Basic. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/acid/basic>.

Basic or Acid. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/acid/basic.

Google Ngram Viewer shows how "acid" and "basic" have occurred on timeline