inadequate, unequal (adj)

lacking the requisite qualities or resources to meet a task

"inadequate training"; "the staff was inadequate"; "she was unequal to the task"

inadequate, poor, short (adj)

not sufficient to meet a need

"an inadequate income"; "a poor salary"; "money is short"; "on short rations"; "food is in short supply"; "short on experience"

inadequate (Adjective)

Not adequate; unequal to the purpose; insufficient; deficient; as, inadequate resources, power, conceptions, representations, etc.