IPA: /ˈwɪərɪsəmli/
KK: /ˈwɛrɪsəmli/
In a way that causes tiredness or boredom; in a tedious manner.
The lecture went on wearisomely, making it hard for the students to stay focused.
Wearisomely → It is formed from "weary" (from Old English "werig", meaning tired or exhausted) and the suffix "-some" (meaning characterized by or causing). The word "wearisomely" means in a manner that causes tiredness or exhaustion.
Think of feeling 'tired' ('weary') and how something can be 'characterized by' that tiredness ('-some'). This helps you remember that 'wearisomely' describes doing something in a way that makes you feel tired.