My husband would not describe himself as smart, but I think it’s probably because he never cared enough about school. He is pretty book smart and has a huge vocabulary in both his native and second language (his second is English, my native, and it’s fucking nuts to me that he’s got a wider English vocabulary than 70% of the kids I went to high school with), but he was just never into academia.
He is significantly smarter than he realizes though. He remembers every good tip or life hack he comes across, so he’s got a wide range of perfected methods for cutting onions, hanging pictures, keeping your place organized, etc.
He’s also very observant about me, to the degree that he literally knows me better than I know myself (I’m autistic and masked well my entire life until I immigrated to a new country and could really get weird without anyone stopping me). I tend to not care about things being right for me as long as they’re not wrong wrong. He’s noticed foods I don’t really like, routines I’m not aware of, and he is stupid good at turning me on (I tried lots of different phrasings here, I’m sorry it still sounds ick).
He DMs in dnd, and he’s so good at it. I tried dming once and realized that it was the equivalent of using your weekends to train for a marathon vs doing beer league soccer (dming vs being a PC). I just don’t want to work that hard while having fun. He has no issue keeping track of dozens of plot hooks or stat blocks and he incorporates new information from the PCs into his story as he goes. I don’t think it’s possible to be a really good DM without being smart (or at least about as smart as the players, and we’ve played with some pretty smart people and with kids, who are wayyy more creative/hard to predict than adults).
I want to go on, but at some point, he’d feel like this is TMI, so I’ll stop now.
I always looked for partners who were academically talented first (well, first for intelligence, I do think kindness is more important), and I’m so glad I was open to people who don’t make that their whole shtick, because I don’t deserve a husband this wonderful.