Antonyms of adj undue

4 senses of undue

Sense 1
undue (vs. due) -- (not yet payable; "an undue loan")

due (vs. undue) -- (owed and payable immediately or on demand; "payment is due")
        => callable -- (subject to a demand for payment before due date; "callable bonds")
        => collect, cod -- (payable by the recipient on delivery; "a collect call"; "the letter came collect"; "a COD parcel")
        => collectible, collectable, payable -- (subject to or requiring payment especially as specified; "a collectible bill"; "a note payable on demand"; "a check payable to John Doe")
        => delinquent, overdue -- (past due; not paid at the scheduled time; "an overdue installment"; "a delinquent account")
        => receivable -- (awaiting payment; "accounts receivable")
        => out-of-pocket -- (calling for the spending of cash; "his out-of-pocket costs were $10")
        => repayable -- (subject to repayment; "business loans are usually repayable in regular installments")

Sense 2
undue (vs. due) -- (not appropriate or proper (or even legal) in the circumstances; "undue influence"; "I didn't want to show undue excitement"; "accused of using undue force")

due (vs. undue) -- (suitable to or expected in the circumstances; "all due respect"; "due cause to honor them"; "a long due promotion"; "in due course"; "due esteem"; "exercising due care")

Sense 3
undue, unjustified, unwarranted -- (lacking justification or authorization; "desire for undue private profit"; "unwarranted limitations of personal freedom")

INDIRECT (VIA unreasonable) -> reasonable, sensible -- (showing reason or sound judgment; "a sensible choice"; "a sensible person")

Sense 4
excessive, inordinate, undue, unreasonable -- (beyond normal limits; "excessive charges"; "a book of inordinate length"; "his dress stops just short of undue elegance"; "unreasonable demands")

INDIRECT (VIA immoderate) -> moderate -- (being within reasonable or average limits; not excessive or extreme; "moderate prices"; "a moderate income"; "a moderate fine"; "moderate demands"; "a moderate estimate"; "a moderate eater"; "moderate success"; "a kitchen of moderate size"; "the X-ray showed moderate enlargement of the heart")

Similarity of adj undue

4 senses of undue

Sense 1
undue (vs. due) -- (not yet payable; "an undue loan")

Sense 2
undue (vs. due) -- (not appropriate or proper (or even legal) in the circumstances; "undue influence"; "I didn't want to show undue excitement"; "accused of using undue force")

Sense 3
undue, unjustified, unwarranted -- (lacking justification or authorization; "desire for undue private profit"; "unwarranted limitations of personal freedom")
       => unreasonable (vs. reasonable) -- (not reasonable; not showing good judgment)

Sense 4
excessive, inordinate, undue, unreasonable -- (beyond normal limits; "excessive charges"; "a book of inordinate length"; "his dress stops just short of undue elegance"; "unreasonable demands")
       => immoderate (vs. moderate) -- (beyond reasonable limits; "immoderate laughter"; "immoderate spending")