unduevsuniqueWhat's the difference?

Which to use

“undue” and “unique” are a confusable English pair: similar on the page, but distinct in meaning, check the gloss before you choose.

#20,003
“undue” frequency rank
#1,845
“unique” frequency rank
21848
confusion score

Side-by-Side Comparison

Feature undue unique
Definition Excessive; going beyond that what is natural or sufficient. Being the only one of its kind; unequaled, unparalleled or unmatched.

Where the spellings diverge

Shared letters are muted; the letters that actually set undue and unique apart are highlighted. They share 4 letters in sequence, which is exactly why the eye skips the difference.

5 ch
undue
6 ch
unique

Spelling & Dictionary Insight

A purely visual mix-up. undue (/ʌnˈdjuː/) and unique (/juːˈniːk/) are said differently, so reading them aloud is the quickest way to catch the wrong one. On the page they stay close: they differ by 1 letter(s) in length. Our composite confusion score for this pair is 21848, derived from the frequency rank of both members and their visual similarity.

undue is recorded at frequency rank #20,003, classified as anadj, pronounced /ʌnˈdjuː/. unique is at rank #1,845, tagged as anadj, pronounced /juːˈniːk/.

Glosses for this pair are partially populated in our dataset, but the full side-by-side definitions above should still guide you to the right choice.

With a confusion score of 21848, this pair ranks #420,901 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of undue vs unique

Shared letters: enu. Private to "undue": d. Private to "unique": iq.

"undue" · 5 letters · shape VCCVV  ·  "unique" · 6 letters · shape VCVCVV

Known mistypes of this pair

  • unduenudue · udnue · unddue · undeu · unndue · unude
  • uniquenuique · uinque · uniqeu · uniqque · uniuqe · unnique · unqiue

Frequency comparison

undue#20,003
unique#1,845

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "undue" and "unique" be used interchangeably?
No. They are said differently (/ʌnˈdjuː/ versus /juːˈniːk/) and carry different meanings; reading the sentence aloud is usually enough to catch the wrong one.
Which is more common, "undue" or "unique"?
"unique" is the more common of the two: it sits at frequency rank #1,845 in our English list, against #20,003 for "undue". That is a wide gap, so in ordinary text the rarer spelling is the one worth double-checking.

Remembering undue vs unique

The fastest way to pick the right one every time.

  • Read both glosses above and match the meaning you intend, only context separates this pair.
  • See each word in full, definition, IPA, etymology and its other confusables. Full “undue” entry
  • Browse more pairs most likely to be confused. Most confusable

Source: Wiktionary (via kaikki.org) Structured Wiktionary extract

Source: FrequencyWords open word-frequency list FrequencyWords open word-frequency list