IPA: /ˈbʌɡiər/
KK: /ˈbʌɡiər/
More buggy than something else; having more bugs or problems.
The new software version is buggier than the previous one.
Comparative: buggier
Superlative: buggiest
The word 'buggier' is derived from 'bug' (from Middle English 'bugge', meaning a ghost or scare) and the comparative suffix '-ier' (meaning more). Thus, 'buggier' means more bug-like or more frightening, as in something that causes more fear or annoyance.
Think of 'bug' as something that can scare or annoy you, and the '-ier' means more of that quality. So, 'buggier' refers to something that is more annoying or frightening.
No commonly confused words.