Smoky
い adjective
This is a single kanji with an い on the end, meaning you know it's probably an adjective. What's the adjective form of smoke? It's smoky.
Since this word consists of a kanji with hiragana attached, you can bet that it will use the kun'yomi reading. You sort of did learn this reading with the vocabulary word 煙, but this one is just different enough where we thought we should make a mnemonic for this one:
All this smokiness is from a terrible chemical (けむ) spill that happened nearby. It was acid, so it burned everything up real good, causing the air to get pretty smoky.
山火事のせいで町中が煙くなっているんです。
The entire town is smoky now due to the wildfire.
花火が煙くて、むせてしまいました。
The smoky fireworks made me cough.
煙いなあ！一体いつになったら煙草やめるんだよ？本当に臭いんだけど。
It’s so smoky! When the heck are you going to quit smoking? This really smells awful.