IPA: /ˈtiːdiəs/
KK: /ˈtɛdɪəs/
Something that is boring or takes a long time to do, making you feel tired or uninterested.
The lecture was so tedious that many students fell asleep.
Tedious → It is formed from the Latin root "taedere" (meaning to weary or disgust) and the suffix "-ous" (meaning full of). The word "tedious" describes something that is full of weariness or boredom.
Think of something that makes you feel 'weary' or 'disgusted' — that's why tedious means something that is boring or tiresome.