na-adjective, noun
half-burnt; half-done; half-baked; rare
Describes something that is only partially cooked, burnt, or completed. The 'rare' gloss refers to undercooked food, not rarity.
このパンは半焼けで、中がまだ生だ。
This bread is half-baked and still raw inside.
半焼けの肉は食べないほうがいい。
You shouldn't eat half-cooked meat.