sufficient -
of a quantity that can fulfill a need or requirement but without being abundant; "sufficient food"
insufficient,
deficient of a quantity not able to fulfill a need or requirement; "insufficient funds"
ample affording an abundant supply; "had ample food for the party"; "copious provisions"; "food is plentiful"; "a plenteous grape harvest"; "a rich supply"
quantity an adequate or large amount; "he had a quantity of ammunition"
enough,
adequate,
decent having the requisite qualities or resources to meet a task; "she had adequate training"; "her training was adequate"; "she was adequate to the job"; "he was equal to the task"