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PlainSpell

undeveloped

adjective, verb

undeveloped is spelled U-N-D-E-V-E-L-O-P-E-D: 11 letters and 4 syllables. It appears 1.3 times per million words in written English, the 25,070th most frequent word form (wordfreq, 2021 data). As an adjective, undeveloped means “Not developed or used” (English Wiktionary, September 2026).

How many letters and syllables are in undeveloped?

Letters11: U-N-D-E-V-E-L-O-P-E-D
Syllables4 (from its American pronunciation)
In writing1.3 times per million words; the 25,070th most frequent word form
Wrong spellings searchednone measured in search

Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation and the CMU Pronouncing Dictionary; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).

How common is undeveloped?

Undeveloped appears 1.3 times per million words in written English, the 25,070th most frequent word form in the list.

Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).

How do you pronounce undeveloped?

    Undeveloped has 4 syllables (counted from its American pronunciation in the CMU Pronouncing Dictionary).

    Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

    Forms of undeveloped

    • undevelopt

    Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

    What does undeveloped mean?

    The meanings the English Wiktionary records, quoted as written there (source below).

    adjective

    1. 1

      Not developed or used.

    2. 2

      not built on, unbuilt; not ready for building on

    3. 3

      lagging behind others, especially in economic or social matters

    verb

    1. 1

      simple past and past participle of undevelop (a form of undevelop)

    Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).

    Undeveloped in Spanish, French, German and Portuguese

    LanguageWords
    Germanunentwickelt (not developed or used), unbebaut (not built on)
    Spanishsubdesarrollado (lagging behind others, especially in economic…)

    Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.

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