ややこしい

troublesome; complicated

Word type: 

Standard: 

めんどう(な)／ふくざつ(な)

Standard kanji: 

面倒(な)／複雑(な)

Example: 

この書類ややこしいなあ。いっこも分かれへんわ。
This paperwork is so complicated, I never understand it.

Commentary: 

Older people may say ややこい.