aontoiseach

Irish

Etymology

From aon- (“one-”) +‎ toise (“dimension”) + -ach (adjectival suffix).

Adjective

aontoiseach (genitive singular masculine aontoisigh, genitive singular feminine aontoisí, plural aontoiseacha, comparative aontoisí)

1. one-dimensional

Declension

Declension of aontoiseach

Positive	singular		plural
	masculine	feminine	strong noun	weak noun
nominative	aontoiseach	aontoiseach	aontoiseacha
vocative	aontoisigh		aontoiseacha
genitive		aontoisí	aontoiseacha	aontoiseach
dative	aontoiseach	aontoiseach; aontoisigh (archaic)	aontoiseacha
Comparative	níos aontoisí
Superlative	is aontoisí

Mutation

Mutated forms of aontoiseach

radical	eclipsis	with h-prothesis	with t-prothesis
aontoiseach	n-aontoiseach	haontoiseach	not applicable

Note: Certain mutated forms of some words can never occur in standard Modern Irish.
All possible mutated forms are displayed for convenience.

Further reading

• “aontoiseach”, in New English-Irish Dictionary, Foras na Gaeilge, 2013–2025