Antonyms of adj repayable

1 sense of repayable

Sense 1
repayable -- (subject to repayment; "business loans are usually repayable in regular installments")

INDIRECT (VIA due) -> undue -- (not yet payable; "an undue loan")

Similarity of adj repayable

1 sense of repayable

Sense 1
repayable -- (subject to repayment; "business loans are usually repayable in regular installments")
       => due (vs. undue) -- (owed and payable immediately or on demand; "payment is due")