Detailed
Fine, Small, Trivial
い adjective
This is an adjective utilizing the second meaning of 細, detailed. So, this just means detailed or fine!
You can remember that this one is "detailed" or "fine" because the かい makes you think of coyotes. Your hobby is making extremely detailed and fine model railroads out of nothing but raw meat. This, however, means that coyotes regularly come in and destroy all of your fine handiwork.
This word has a different reading from the ones you've learned so far, so here's a mnemonic to help you:
After the coyote wrecks your model railroad, he bites you on the head, sending you into an indefinite coma (こま).
じゃあ、このキャベツを細かくきざんでください。
Then, finely chop this cabbage please.
細かいお金しかありません。
I only have small change.
木を見て森を見ず、だぜ。細かいことにばかり気をとられずに、もっと大きいスケールで物を考えてくれよ。
You can’t see the wood for the trees. Don’t just focus on the details, look at the bigger picture.