IPA: /ˈɪrk.sə.mə.li/
KK: /ˈɪrk-sə-mə-lee/
In a way that causes annoyance or irritation; in a tedious manner.
The meeting dragged on irksomely, making everyone restless.
Irksomely → It is formed from "irksome" (from Old English "earcian", meaning to be troublesome or annoying) and the suffix "-ly" (meaning in a manner of). The word "irksomely" means in a manner that is troublesome or annoying.
Think of something that is 'troublesome' ('irksome') and how it is done 'in a manner' ('-ly'). This helps you remember that 'irksomely' describes an annoying way of doing something.