腹いっぱい・腹一杯|はらいっぱいharaippai[0]heiban (flat)

1. noun, adverbhaving a full stomach; being full
   家いえに帰かえって朝食ちょうしょくを腹一杯はらいっぱいに食たべた。↗

   I went home and ate a hearty breakfast.
2. adverbto one's heart's content

• Synonym満腹まんぷくNeutralBeing full; basically interchangeable with 「腹いっぱい」 but slightly more formal, as in 「満腹です」. 「腹いっぱい」 also covers the figurative sense 'to one's heart's content'.
• RelatedパンパンCasualMimetic word for bulging, stuffed to bursting; colloquial, as in 「お腹がパンパン」. More exaggerated than 「腹いっぱい」.
• Antonym空腹くうふくNeutralEmpty stomach, hunger; the opposite of 「腹いっぱい」 in its 'full' sense, as in 「空腹を満たす」. Feels more formal.
• Antonym腹ペコはらぺこCasualColloquial for being starving; the opposite of 「腹いっぱい」 when full. Light in tone, used mostly among friends.

For being full, say 「腹いっぱい」 (often 「お腹いっぱい」); it also works figuratively, e.g. being fed up with something. 「満腹」 is a slightly more formal choice. For hunger, casual 「腹ペコ」 or the more formal 「空腹」.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

1. 食たべたもので腹はらが満みちること。満腹まんぷく。
2. 食たべたもので腹はらが満ち足みちたりるさま。