noun, noun or participle which takes 'suru', noun which may take the genitive case particle 'no', na-adjective
full stomach; being full; eating one's fill
The ordinary modern sense: being physically full after eating. Common as 満腹だ and 満腹になる; Also allows a する use, but everyday Japanese more often uses になる for 'become full'.
Antonyms: 空腹
昼食を食べ過ぎて、まだ満腹だ。
I ate too much at lunch, and I'm still full.
ビュッフェで満腹になるまで食べた。
We ate at the buffet until we were full.
noun which may take the genitive case particle 'no'
complete; total; full; heartfelt; sincere
Rare dictionary-like or literary adjectival use with の. In modern Japanese, phrases with this spelling can sound unusual, and words such as 全面的, 十分, 満幅, or 満腔 are often more natural depending on the intended meaning.
「満腹の信頼」は、まれに「全面的な信頼」という意味で説明される。
The phrase 満腹の信頼 is rarely explained as meaning 'complete trust'.
「満腹の謝意」のような言い方は、現代ではかなり古風に響く。
An expression like 満腹の謝意, 'heartfelt gratitude', sounds quite old-fashioned today.