Which to use
“informal” is an adjective and “informant” is a noun - they look or sound alike but fill different roles in a sentence.
- #8,682
- “informal” frequency rank
- #18,858
- “informant” frequency rank
- 27540
- confusion score
Side-by-Side Comparison
| Feature | informal | informant |
|---|---|---|
| Definition | Not formal or ceremonious. | One who relays confidential information to someone, especially to the police; an informer. |
Where the spellings diverge
Shared letters are muted; the letters that actually set informal and informant apart are highlighted. They share 7 letters in sequence, which is exactly why the eye skips the difference.
Spelling & Dictionary Insight
These two trip readers on the page rather than in the ear: informal is /ɪnˈfɔɹm(ə)l/ while informant is /ɪnˈfɔːmənt/. Spoken aloud the problem disappears. In writing it persists, because they differ by 1 letter(s) in length, and the parts of speech differ too (adjective vs noun), which is usually the fastest check. Our composite confusion score for this pair is 27540, derived from the frequency rank of both members and their visual similarity.
informal is recorded at frequency rank #8,682, classified as anadj, pronounced /ɪnˈfɔɹm(ə)l/. informant is at rank #18,858, tagged as anoun, pronounced /ɪnˈfɔːmənt/.
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 27540, this pair ranks #378,116 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.
Orthographic DNA of informal vs informant
Shared letters: afimnor. Private to "informal": l. Private to "informant": t.
"informal" · 8 letters · shape VCCVCCVC · "informant" · 9 letters · shape VCCVCCVCC
Known mistypes of this pair
Frequency comparison
Frequently Asked Questions
Can "informal" and "informant" be used interchangeably?
Which is more common, "informal" or "informant"?
Remembering informal vs informant
The fastest way to pick the right one every time.
- Check the role first: if you need an adjective, it's “informal”; for a noun, it's “informant”.
- See each word in full, definition, IPA, etymology and its other confusables. Full “informal” entry
- Browse more pairs most likely to be confused. Most confusable