頭でっかち
Meanings
Na-adjective
No-adjective
Noun
1. top-heavy
2. big-headed
3. overly-theoretical
Kanji used
Pitch accent
あたまでっかち
Examples3
彼
He is an armchair theorist.
うちの会社
Our company is too top-heavy.
頭でっかち
I find overthinkers to be a little hard to deal with but I don't hate them so to say.