Tá roinnt aidiachtaí ann a ndéantar coimriú orthu san uimhir iolra, is é sin, cailleann siad guta nó dhó:
Some adjectives are syncopated in the plural, that’s to say, they lose a vowel or two:
| Uatha Singular | Iolra Plural |
| aoibhinn lovely | aoibhne lovely |
| bodhar deaf | bodhra deaf |
| daingean solid | daingne solid |
| deacair difficult | deacra difficult |
| domhain deep | doimhne deep |
| folamh empty | folmha empty |
| íseal low | ísle low |
| láidir strong | láidre strong |
| milis sweet | milse sweet |
| ramhar fat | ramhra fat |
| righin stubborn | righne stubborn |
| saibhir rich | saibhre rich |
| sleamhain slippery | sleamhna slippery |
| socair calm | socra calm |
| uasal noble | uaisle noble |