immunocompromised

adj

"immunocompromised" is a 17-letter English headword indexed on PlainSpell.

The verdict

“immunocompromised” is uncommon English (frequency #65,200 among 2,140 “I” headwords), classed as an adjective. The kind of spelling people second-guess.

#65,200
frequency rank, English
2,140
“I” headwords

According to Wiktionary data (CC BY-SA, analyzed September 3, 2026) - Having an immune system that has been impaired by disease or treatment.

Corpus desk

Index EN-immunocompromised · immunocompromised · English

immunocompromised · rank #65,200 · 0 variants · 0 confusables

  • FREQ-RARE #65,200
  • LEN-MEGA 17 letters
  • VOW-7 7 vowels
  • CONFUS-0 No pairs
  • VAR-0 0 variants
  • BOOK-MID 2,140
  • PHOTO-FINISH imbibe

Nearest frequency peer: imbibe (-1 rank slots)

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.

Long-tail ranks near “immunocompromised”

Sparse band: bars invert rank so rarer forms read shorter

corpus weight

What this shows Long-tail view: where “immunocompromised” sits against similarly uncommon English ranks.

Source FrequencyWords open word-frequency list As of September 3, 2026
Key facts for immunocompromised
PropertyValue
Headwordimmunocompromised
LanguageEnglish
Part of speechAdjective
Letters17
Frequency rank#65,200
Misspellings tracked0
Confusable pairs0
SourceWiktionary (kaikki.org)

Long-tail rank of “immunocompromised” in English

This scale runs from the tiny cluster of words that carry ordinary speech (left) to the long tail of words almost nobody reaches for (right).immunocompromisedfalls in this rarity band:

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

Scale is logarithmic (each tick is 10× rarer). Rare peers in the same band: “imbibe” (#65,199), “impassive” (#65,201), “impermanence” (#65,202). Among 2,140 “I” headwords, “immunocompromised” is #65,200. Source: FrequencyWords open word-frequency list.

Rare enough to double-check

immunocompromised is uncommon English at frequency #65,200 among 2,140 “I” headwords, classed as anadjective. Rarity is why readers land here mid-draft. Gloss: "Having an immune system that has been impaired by disease or treatment.".

immunocompromised doesn't appear in our generated misspelling index, a sign its spelling follows regular English conventions. It is not paired with a close-neighbour confusable in our dataset, since nothing in our dataset looks or sounds close enough to cause mix-ups.

Etymologically, the entry records: From immuno- + compromised. The correct English form is immunocompromised, spelled I-M-M-U-N-O-C-O-M-P-R-O-M-I-S-E-D.

Definition

  1. 1
    Having an immune system that has been impaired by disease or treatment.

Recorded use

Wiktionary example

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

  1. More than seven million adults in the United States, or about 3 percent, are characterized by health professionals as immunocompromised because of a disease, medication or other treatment that weakens their body’s immune response, meaning that diseases such as Covid-19 can be more deadly to them, and that vaccines offer less protection.

Etymology

From immuno- + compromised.

This word in other languages

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 "immunocompromised"?
"immunocompromised" is spelled I-M-M-U-N-O-C-O-M-P-R-O-M-I-S-E-D.
What does "immunocompromised" mean?
As an adjective, "immunocompromised" means: Having an immune system that has been impaired by disease or treatment.
What is the origin of the word "immunocompromised"?
From immuno- + compromised. 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.

Similar English words by spelling shape

Same letter count and similar misspelling depth for "immunocompromised", not the corpus desk frequency band.

Same letter count

Frequency-ranked English headwords with 17 letters (nearest by frequency rank).

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

Source: FrequencyWords open word-frequency list