1. undue

not yet payable

Example Sentences:
'an undue loan'

2. undue

not appropriate or proper (or even legal) in the circumstances

Example Sentences:
'undue influence'
'I didn't want to show undue excitement'
'accused of using undue force'

3. undue, unjustified, unwarranted

lacking justification or authorization

Example Sentences:
'desire for undue private profit'
'unwarranted limitations of personal freedom'

• unjustified
• unwarranted

4. excessive, inordinate, undue, unreasonable

beyond normal limits

Example Sentences:
'excessive charges'
'a book of inordinate length'
'his dress stops just short of undue elegance'
'unreasonable demands'

• excessive
• inordinate
• unreasonable