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Synthetic in Irish (sintéiseach): Meaning, Forms, Examples

The Irish for synthetic is sintéiseach: ábhar sintéiseach, a synthetic material.
Updated October 2026Report a mistake

How to say “synthetic” in Irish

Irish:
sintéiseach
English:
synthetic
Word type:
adjective
More synthetic:
níos sintéisí
Most synthetic:
is sintéisí
Plural:
sintéiseacha
Pronunciation:
“SHIN-tay-shuch”  /ˈʃɪnʲtʲeːʃəx/

What does “sintéiseach” mean?

“Sintéiseach” has two alternative meanings. The most common comes first.

synthetic
Made artificially by combining substances, not occurring naturally.Also: artificial, man-made.
1 other meaning:
2synthetic
In grammar, describing a verb form that shows person in its ending rather than with a separate pronoun.Also: inflected.

“Sintéiseach” after a noun

An Irish adjective comes after its noun. Here is sintéiseach after ábhar (material, masculine), after bróg (shoe, feminine) and after a plural.

after a masculine nounábhar sintéiseacha synthetic material
after a feminine nounbróg shintéiseacha synthetic shoe
after a plural nounábhair shintéiseachasynthetic materials

séimhiú (the h) the ending

feminine
brógshoe
+
sintéiseachsynthetic
=
bróg shintéiseacha synthetic shoe

After a feminine noun the adjective gets a séimhiú, an h after its first letter: bróg shintéiseach. After a masculine noun it stays as it is: ábhar sintéiseach.

plural
ábhairmaterials
+
sintéiseachasynthetic, plural
=
ábhair shintéiseachasynthetic materials

With a plural noun the adjective takes its plural form, sintéiseacha. It also gets an h after a plural that ends in a slender consonant: ábhair shintéiseacha; after other plurals it does not: bróga sintéiseacha.

More synthetic, most synthetic, very synthetic

níosmore
+
sintéisísynthetic
=
níos sintéisímore synthetic
ismost
+
sintéisísynthetic
=
is sintéisímost synthetic

Tá an t-ábhar seo níos sintéisí ná an ceann eile. This material is more synthetic than the other one.

more syntheticníos sintéisíin the past tense: ní ba shintéisí
most syntheticis sintéisíin the past tense: ba shintéisí
as synthetic aschomh sintéiseach leno change after chomh
very synthetican-sintéiseachan- lenites, except d, t and s
too syntheticróshintéiseachró- lenites

“Sintéiseach” in a sentence: Irish examples

With a masculine noun, a feminine noun, a plural, a comparison and on its own.

Is ábhar sintéiseach é an níolón.
Nylon is a synthetic material.
Is foirm shintéiseach í "molaim".
"Molaim" is a synthetic form.
Úsáidtear snáithíní sintéiseacha in éadaí spóirt.
Synthetic fibres are used in sportswear.
Tá an t-ábhar seo níos sintéisí ná an ceann eile.
This material is more synthetic than the other one.
Tá an rubar seo sintéiseach.
This rubber is synthetic.

Other adjectives in Irish

More everyday Irish adjectives to learn next.

Synthetic in Irish: frequently asked questions

What is the Irish for synthetic?

The Irish for synthetic is sintéiseach (pronounced “SHIN-tay-shuch”). It comes after the noun: ábhar sintéiseach, a synthetic material; bróg shintéiseach, a synthetic shoe.

How do you say more synthetic and most synthetic in Irish?

níos sintéisí is more synthetic and is sintéisí is most synthetic. In the past tense they become ní ba shintéisí and ba shintéisí.

Why does sintéiseach become shintéiseach?

After a feminine singular noun an adjective is lenited: it gets an h after its first letter. So bróg shintéiseach (a synthetic shoe) but ábhar sintéiseach (a synthetic material), because ábhar is masculine.

What is the plural of sintéiseach?

With a plural noun sintéiseach becomes sintéiseacha: ábhair shintéiseacha, bróga sintéiseacha. After a plural that ends in a slender consonant it is lenited as well.

How do you say very synthetic in Irish?

an-sintéiseach. Too synthetic is róshintéiseach, and as synthetic as is chomh sintéiseach le.

What is the opposite of a synthetic verb form in Irish?

An analytic form is called "foirm scartha", for example "mholfainn" is synthetic while "mholfadh sé" is analytic.

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