Definitions

experimental

[ik-sper-uh-men-tl] / ɪkˌspɛr əˈmɛn tl /

ADJECTIVE

exploratory

Synonyms

STRONGEST

empirical preliminary unproved

WEAK

beginning developmental experiential first stage laboratory momentary on approval pilot preparatory primary probationary provisional speculative temporary tentative test trial trial-and-error unconcluded under probation

Antonyms

WEAK

proven tested tried

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

A model of how one of GluBio’s experimental ‘molecular glue’ drugs causes two proteins in the human body, WIZ and cereblon, to stick to each other in a way designed to relieve sickle cell disease.

From The Wall Street Journal • Apr. 11, 2026

The biotech’s experimental cancer treatment is a genetically engineered version of the Herpes Simplex Virus type 1, the same virus that causes cold sores.

From Barron's • Apr. 10, 2026

Some listeners find continuity in Arirang's polished and experimental sound co-created by American producers and engineers, but others say this album is too highly produced, missing the raw passion of Dark & Wild.

From BBC • Apr. 8, 2026

The best way of communicating the experimental philosophy was through making it possible for people to see experiments performed.

From "The Invention of Science" by David Wootton

Vocabulary lists containing experimental

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This Week in Words: Current Events Vocab for July 3–July 9, 2021

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