Excessive, inappropriate, or not warranted by the circumstances; beyond what is reasonable or necessary.
From Latin undus meaning 'not owed' or 'not fitting,' combining un- (not) and due (owed, proper). The word emphasizes something that goes beyond what is proper or deserved in a given situation.
Legal language loves 'undue' because it captures the precise concept of something being excessive relative to what's appropriate in context - 'undue influence,' 'undue burden,' and 'undue delay' are common legal terms. The word implies not just that something is too much, but that it violates a standard of propriety or fairness.
Complete word intelligence in one call. Free tier — 50 lookups/day.