undetermined

adj

"undetermined" is a 12-letter English headword indexed on PlainSpell.

The verdict

“undetermined” is a moderately-common English word, ranked #33,470 in English word frequency and used as an adjective.

#33,470
frequency rank, English
12
letters
18
tracked misspellings

According to Wiktionary data (CC BY-SA, analyzed May 6, 2026) - Not determined; not settled; not decided.

Key facts for undetermined
PropertyValue
Headwordundetermined
LanguageEnglish
Part of speechAdjective
Letters12
Frequency rank#33,470
Misspellings tracked18
Confusable pairs0
SourceWiktionary (kaikki.org)

Where “undetermined” sits in English frequency

Every-word frequency runs from the handful of words we use constantly (left) to the long tail used once in a blue moon (right). undetermined lands here:

#1#100#1K#10K#100K
← used constantlyrarely used →

Scale is logarithmic (each tick is 10× rarer). Source: FrequencyWords open word-frequency list.

Spelling & Dictionary Insight

The English entry for undetermined is 12 letters long, classified as an adjective. Corpus data places it at rank #33,470 in overall English word frequency, marking it as uncommon enough that many writers pause before typing it. Wiktionary records 2 distinct senses for this headword, so context determines which meaning a reader should apply.

Our generated misspelling index lists 18 likely wrong-spelling variants for undetermined, with forms such as "nudetermined", "udnetermined", and "unddetermined". Each variant is a distinct typo pattern an edit-distance generator flags, typically a doubled-consonant error, a silent-letter drop, or a vowel substitution. Our confusable-pair dataset has no match for it, since its spelling is unusual enough that it doesn't cluster with a lookalike.

Etymologically, the entry records: From un- + determined. The correct English form is undetermined, spelled U-N-D-E-T-E-R-M-I-N-E-D.

Definition

  1. 1
    Not determined; not settled; not decided.
  2. 2
    Not limited; not defined; indeterminate.

Etymology

From un- + determined.

This word in other languages

Common misspellings

Also misspelled as: nudetermined,udnetermined,unddetermined,undeetrmined,undetemrined,undeterimned,undetermiend,undeterminde,undeterminedd,undeterminned,undetermmined,undetermnied,undeterrmined,undetremined,undettermined,undteermined,unedtermined,unndetermined

Misspelling Pattern Breakdown

How far each generated variant is from the correct spelling of undetermined - expressed in single-character edits (insert, delete, or swap one letter). Bigger bars stand out at a glance; a one-edit slip is the hardest to catch.

nudetermined2udnetermined2unddetermined1undeetrmined2undetemrined2undeterimned2undetermiend2undeterminde2
Edit distance from "undetermined"

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA); frequency ordering uses the FrequencyWords open word-frequency list (2018 English corpus, MIT). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "undetermined"?
"undetermined" is spelled U-N-D-E-T-E-R-M-I-N-E-D.
What does "undetermined" mean?
As an adjective, "undetermined" means: Not determined; not settled; not decided.
What are common misspellings of "undetermined"?
Common misspellings include "nudetermined", "udnetermined", "unddetermined", "undeetrmined", "undetemrined". The correct spelling is "undetermined".
What is the origin of the word "undetermined"?
From un- + determined. See the full etymology section above for more details.
Is PlainSpell free to use?
Yes, PlainSpell is a completely free word reference. You can look up definitions, pronunciations, confusable pairs, homophones, and spelling corrections across 5 languages without any sign-up or subscription.

Using “undetermined”

The practical upshot for anyone who landed here from a spell-check.

  • The one correct English spelling is U-N-D-E-T-E-R-M-I-N-E-D - every other letter order is a misspelling in standard orthography.
  • Browse more English words and confusable pairs in the same reference. English words
Data Source

Wiktionary (via kaikki.org), licensed under CC BY-SA & GFDL. Word ordering uses an open word-frequency list; misspelling variants are generated by edit-distance from the correct headword.

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

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