Not satisfying; feeling something is lacking in quantity or quality; insufficient to meet expectations.
この料理は美味しいけど、量が少なくて物足りない。
The dish is tasty, but there's too little of it and it's not filling enough.
試験の勉強をしたつもりだが、まだ物足りない気がする。
I feel like I studied for the exam, but it's still not enough.
映画の結末があっさりしていて物足りなかった。
The movie's ending was too abrupt and left me unsatisfied.