UNDUE
undue
(adjective) not yet payable; “an undue loan”
undue
(adjective) 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”
excessive, inordinate, undue, unreasonable
(adjective) beyond normal limits; “excessive charges”; “a book of inordinate length”; “his dress stops just short of undue elegance”; “unreasonable demands”
undue, unjustified, unwarranted
(adjective) lacking justification or authorization; “desire for undue private profit”; “unwarranted limitations of personal freedom”
Source: WordNet® 3.1
Etymology
Adjective
undue (comparative more undue, superlative most undue)
Excessive; going beyond that what is natural or sufficient.
That which ought not to be done; illegal; unjustified.
(of a payment etc) Not owing or payable.
Source: Wiktionary
Un*due", a.
1. Not due; not yet owing; as, an undue debt, note, or bond.
2. Not right; not lawful or legal; improper; as, an undue proceeding.
Bacon.
3. Not agreeable to a rule or standard, or to duty; disproportioned;
excessive; immoderate; inordinate; as, an undue attachment to forms;
an undue rigor in the execution of law. Undue influence (Law), any
improper or wrongful constraint, machination, or urgency of
persuasion, by which one's will is overcome and he is induced to do
or forbear an act which he would not do, or would do, if left to act
freely. Abbott.
Source: Webster’s Unabridged Dictionary 1913 Edition