Cuntish

adj.

Heard in Roscommon, Mayo and Galway

Describing a situation, turn of events, or person that is exceptionally unpleasant or malicious.

In use

It was such a cuntish thing to happen right before his birthday weekend!

Posh English

It was such an exceedingly unfortunate and spiteful occurrence to transpire right before his celebratory weekend.

Same phrase, other counties