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Spiral in Irish (bíseach): Meaning, Forms, Examples

The Irish for spiral is bíseach: staighre bíseach, a spiral stairs.
Updated October 2026Report a mistake

How to say “spiral” in Irish

Irish:
bíseach
English:
spiral
Word type:
adjective
More spiral:
níos bísí
Most spiral:
is bísí
Plural:
bíseacha
Pronunciation:
“BEE-shuch”  /ˈbʲiːʃəx/

What does “bíseach” mean?

spiral
Winding round and round a central point or line, like a screw or a coil.Also: helical, coiled, screw-shaped, winding.

“Bíseach” after a noun

An Irish adjective comes after its noun. Here is bíseach after staighre (stairs, masculine), after líne (line, feminine) and after a plural.

after a masculine nounstaighre bíseacha spiral stairs
after a feminine nounlíne bhíseacha spiral line
after a plural nounstaighrí bíseachaspiral stairs

séimhiú (the h) the ending

feminine
líneline
+
bíseachspiral
=
líne bhíseacha spiral line

After a feminine noun the adjective gets a séimhiú, an h after its first letter: líne bhíseach. After a masculine noun it stays as it is: staighre bíseach.

plural
staighrístairs
+
bíseachaspiral, plural
=
staighrí bíseachaspiral stairs

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

More spiral, most spiral, very spiral

níosmore
+
bísíspiral
=
níos bísímore spiral
ismost
+
bísíspiral
=
is bísímost spiral

Tá an staighre seo níos bísí ná an ceann eile. This staircase is more spiral than the other one.

more spiralníos bísíin the past tense: ní ba bhísí
most spiralis bísíin the past tense: ba bhísí
as spiral aschomh bíseach leno change after chomh
very spiralan-bhíseachan- lenites, except d, t and s
too spiralróbhíseachró- lenites

“Bíseach” in a sentence: Irish examples

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

Tá staighre bíseach sa seanteach solais.
There is a spiral staircase in the old lighthouse.
Tharraing an páiste líne bhíseach ar an bpáipéar.
The child drew a spiral line on the paper.
Tá staighrí bíseacha sna túir chloiche.
There are spiral staircases in the stone towers.
Tá an staighre seo níos bísí ná an ceann eile.
This staircase is more spiral than the other one.
Tá cruth an tsliogáin bíseach.
The shape of the shell is spiral.

Other adjectives in Irish

More everyday Irish adjectives to learn next.

Spiral in Irish: frequently asked questions

What is the Irish for spiral?

The Irish for spiral is bíseach (pronounced “BEE-shuch”). It comes after the noun: staighre bíseach, a spiral stairs; líne bhíseach, a spiral line.

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

níos bísí is more spiral and is bísí is most spiral. In the past tense they become ní ba bhísí and ba bhísí.

Why does bíseach become bhíseach?

After a feminine singular noun an adjective is lenited: it gets an h after its first letter. So líne bhíseach (a spiral line) but staighre bíseach (a spiral stairs), because staighre is masculine.

What is the plural of bíseach?

With a plural noun bíseach becomes bíseacha: staighrí bíseacha, línte bíseacha.

How do you say very spiral in Irish?

an-bhíseach. Too spiral is róbhíseach, and as spiral as is chomh bíseach le.

Is 'bíseach' the same word as 'biseach'?

No. 'Bíseach', with a long í, is an adjective meaning spiral, from 'bís' (a screw or spiral), while 'biseach', with a short i, is a noun meaning improvement or recovery, as in 'tá biseach air'.

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