to eat one's fill, to get one's fill, to eat as much as one wants, to have enough to eat

to not have had enough to eat, to be unsatiated / to be left hungry for more, to be left wanting more, to be left unsatisfied; to be somewhat underwhelmed, to be a bit disappointed

(transitive, figuratively) to leave someone dissatisfied, to leave someone wanting more, to fall short of someone's expectations

plural of faim

feminine singular of faimrieux