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synthetic

1 of 2

adjective

syn·​thet·​ic sin-ˈthe-tik How to pronounce synthetic (audio)
1
: relating to or involving synthesis : not analytic
the synthetic aspects of a philosophy
2
: attributing to a subject something determined by observation rather than analysis of the nature of the subject and not resulting in self-contradiction if negated compare analytic
3
: characterized by frequent and systematic use of inflected forms to express grammatical relationships
synthetic languages
4
a(1)
: of, relating to, or produced by chemical or biochemical synthesis
especially : produced artificially
synthetic drugs
synthetic silk
(2)
: of or relating to a synfuel
b
: devised, arranged, or fabricated for special situations to imitate or replace usual realities
synthetically adverb

synthetic

2 of 2

noun

: something resulting from synthesis rather than occurring naturally
especially : a product (such as a drug or plastic) of chemical synthesis

Synonyms of synthetic

Examples of synthetic in a Sentence

Adjective that organic farm doesn't use any pesticides or synthetic fertilizers boots of waterproof synthetic leather Noun The drug is a synthetic.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Adjective
High heat will melt or scorch many synthetic fabrics. Brandee Gruener, Southern Living, 21 Nov. 2025 Sonically, the track laces enchanting string instruments, such as the harp, and synthetic reggaetón sounds, evoking feelings of remembrance and melancholy. Tere Aguilera, Billboard, 21 Nov. 2025
Noun
Similarly, seamless apparel (which evolved from hosiery and relies heavily on synthetics) is another cotton frontier. Lauren Parker, Sourcing Journal, 18 Nov. 2025 There is a vital need to protect children by, at a minimum, requiring that purchasers be 21 and prohibiting synthetics and dangerous foreign imports marketed to kids. Fort Worth Star-Telegram, 13 Nov. 2025 See All Example Sentences for synthetic

Word History

Etymology

Adjective

Greek synthetikos of composition, component, from syntithenai to put together

First Known Use

Adjective

1697, in the meaning defined at sense 1

Noun

1916, in the meaning defined above

Time Traveler
The first known use of synthetic was in 1697

Cite this Entry

“Synthetic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/synthetic. Accessed 29 Nov. 2025.

Kids Definition

synthetic

1 of 2 adjective
syn·​thet·​ic sin-ˈthet-ik How to pronounce synthetic (audio)
1
: relating to or involving synthesis
2
: of, relating to, or produced by chemical synthesis
especially : produced artificially
synthetic drugs
synthetic fibers
synthetically adverb

synthetic

2 of 2 noun
: a product of chemical synthesis

Medical Definition

synthetic

1 of 2 adjective
syn·​thet·​ic sin-ˈthet-ik How to pronounce synthetic (audio)
: of, relating to, or produced by chemical or biochemical synthesis
especially : produced artificially
synthetic drugs
synthetic dyes
synthetically adverb

synthetic

2 of 2 noun
: a product (as a drug) of chemical synthesis

More from Merriam-Webster on synthetic

Last Updated: - Updated example sentences
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