Not Convenient
Noun and な adjective
ふべん
この辺りでは、車を持っていないとかなり不便ですよ。
Not having a car around here is really inconvenient.
ワニカニの使い勝手はいかがですか？ご不便はございませんか？
How is WaniKani working out for you? Have you experienced any issues?
俺の隠れ家へようこそ。ビールは冷蔵庫に入ってるぜ。ちょっと不便かもしれねぇが、煙草は外で吸ってくれよな。
Welcome to my man cave. Beers are in the refrigerator. It may be a bit inconvenient for you, but you’ve got to go outside to smoke.
Something that is not convenience is inconvenient.
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.