headachiest
/ˈhɛdˌeɪkiəst/
adjective
- Most likely to cause a headache; most troublesome, annoying, or difficult to deal with.
- This is the headachiest puzzle I've ever tried to solve.
- The headachiest part of planning a wedding is coordinating all the vendors.
- Of all the tasks on my list, filing taxes is the headachiest.
Synonyms