just enough

• adequateBarely meeting standards
• sufficientMeeting minimum requirements
• barelyOnly just, almost not
• minimalSmallest amount needed
• scrapingRubbing away material

threshold · tight · modest · passable · satisfactory · scarce · limited · frugal · skinny · squeaking · borderline · rationed · stretched · spare · lean · pinch · sliver · subsistence

• adequacyadequate, enough, sufficient, satisfactory, acceptable
• bare minimumbasics, essentials, necessities, needs, requirements
• moderationmoderation, in moderation, restraint, self-control, moderately