unprofessionally

adv

"unprofessionally" is a 16-letter English headword indexed on PlainSpell.

The verdict

“unprofessionally” is uncommon English (outside the top frequency list), classed as an adverb. The kind of spelling people second-guess.

Unranked
below top-frequency English
16
letters

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - In an unprofessional manner.

Corpus desk

Index EN-unprofessionally · unprofessionally · English

unprofessionally · unranked · 0 variants · 0 confusables

  • FREQ-UNRANKED Unranked
  • LEN-MEGA 16 letters
  • VOW-7 7 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-THIN "U" thin
  • PHOTO-UNK Peer pending

Read with this headword: Spelling guide for this pattern

Desk codes from Wiktionary headword shape, FrequencyWords rank tier, confusable-pair count, generated misspelling depth, letter-cohort book size, and photo-finish peer. Not a difficulty grade.

Key facts for unprofessionally
PropertyValue
Headwordunprofessionally
LanguageEnglish
Part of speechAdverb
Letters16
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “unprofessionally” in English

unprofessionallyranks outside the top 100,000 English headwords, in the long tail of specialist, archaic, or seldom-used vocabulary, exactly the territory where a reader stops mid-sentence to double-check spelling.

Beyond rank #100,000. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

unprofessionally is uncommon English outside the top frequency list, classed as anadverb. Rarity is why readers land here mid-draft. Gloss: "In an unprofessional manner.".

Zero misspellings are on record for unprofessionally in our index, a sign its spelling follows regular English conventions. We don't track a confusable pairing for this entry, since no other headword is close enough in sound or shape to pair with it.

Etymologically, the entry records: From unprofessional + -ly or un- + professionally. The correct English form is unprofessionally, spelled U-N-P-R-O-F-E-S-S-I-O-N-A-L-L-Y.

Definition

  1. 1
    In an unprofessional manner.

Recorded use

Wiktionary example

These source excerpts show how unprofessionally appears in context. They illustrate usage; the definition above remains the entry’s reference meaning.

  1. Bouteillan, the old bald butler who unprofessionally now wore a mustache (dyed a rich gravy brown), met him with gested delight [...].

Etymology

From unprofessional + -ly or un- + professionally.

Definitions, pronunciation, and etymology for this entry are drawn from Wiktionary via the kaikki.org structured extract (CC BY-SA). See the methodology for how each field is sourced and updated.

Frequently Asked Questions

How do you spell "unprofessionally"?
"unprofessionally" is spelled U-N-P-R-O-F-E-S-S-I-O-N-A-L-L-Y.
What does "unprofessionally" mean?
As an adverb, "unprofessionally" means: In an unprofessional manner.
What is the origin of the word "unprofessionally"?
From unprofessional + -ly or un- + professionally. 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.

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

Source: FrequencyWords open word-frequency list