experimentalvsexperimentallyWhat's the difference?

Quick tell: experimental is a adjective, experimentally is an adverb, so they fill different roles in a sentence.

Which to use

“experimental” is an adjective and “experimentally” is an adverb - they look or sound alike but fill different roles in a sentence.

#4,447
“experimental” frequency rank
#28,541
“experimentally” frequency rank
32988
confusion score

Side-by-Side Comparison

Feature experimental experimentally
Definition Pertaining to or founded on experiment. In the manner of an experiment.

Where the spellings diverge

Shared letters are muted; the letters that actually set experimental and experimentally apart are highlighted. They share 12 letters in sequence, which is exactly why the eye skips the difference.

12 ch
experimental
14 ch
experimentally

Spelling & Dictionary Insight

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: experimental is anadjective and experimentallyanadverb. On the page they differ by 2 extra letter(s) - “experimental” sits inside “experimentally”. Our composite confusion score for this pair is 32988, derived from the frequency rank of both members and their visual similarity.

experimental is recorded at frequency rank #4,447, classified as anadj, pronounced /ɪkspɛɹəˈmɛntəl/. experimentally is at rank #28,541, tagged as anadv.

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 32988, this pair ranks #333,204 of 530,003 scored English confusable pairs - roughly mid-pack for confusability.

Orthographic DNA of experimental vs experimentally

Shared letters: aeilmnprtx. Private to "experimental": -. Private to "experimentally": y.

"experimental" · 12 letters · shape VCCVCVCVCCVC  ·  "experimentally" · 14 letters · shape VCCVCVCVCCVCCV

Known mistypes of this pair

  • experimentalepxerimental · exeprimental · expeirmental · experiemntal · experimenatl · experimenntal · experimentall · experimentla
  • experimentallyepxerimentally · exeprimentally · expeirmentally · experiemntally · experimenatlly · experimenntally · experimentallyy · experimentaly

Frequency comparison

experimental#4,447
experimentally#28,541

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "experimental" and "experimentally" be used interchangeably?
No - they are not even the same part of speech. "experimental" is an adjective and "experimentally" an adverb, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "experimental" or "experimentally"?
"experimental" is the more common of the two: it sits at frequency rank #4,447 in our English list, against #28,541 for "experimentally". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Remembering experimental vs experimentally

The fastest way to pick the right one every time.

  • Check the role first: if you need an adjective, it's “experimental”; for an adverb, it's “experimentally”.
  • See each word in full, definition, IPA, etymology and its other confusables. Full “experimental” entry
  • Browse more pairs most likely to be confused. Most confusable

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

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