adherence vs adherent, What's the Difference?

Which to use

“adherence” is a noun and “adherent” is an adjective - they look or sound alike but fill different roles in a sentence.

#18,474
“adherence” frequency rank: #46,890
“adherent” frequency rank: 65364
confusion score

Side-by-Side Comparison

Feature	adherence	adherent
Definition	A close physical union of two objects.	Adhesive, sticking to something.

Where the spellings diverge

Shared letters are muted; the letters that actually set adherence and adherent apart are highlighted. They share 7 letters in sequence, which is exactly why the eye skips the difference.

9 ch

adherence

8 ch

adherent

Spelling & Dictionary Insight

These two trip readers on the page rather than in the ear: adherence is /ədˈhɪə.ɹəns/ while adherent is /ædˈ(h)ɪə.ɹənt/. 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 (noun vs adjective), which is usually the fastest check. Our composite confusion score for this pair is 65364, derived from the frequency rank of both members and their visual similarity.

adherence is recorded at frequency rank #18,474, classified as anoun, pronounced /ədˈhɪə.ɹəns/. adherent is at rank #46,890, tagged as anadj, pronounced /ædˈ(h)ɪə.ɹənt/.

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 65364, this pair ranks #73,116 of 530,003 scored English confusable pairs - among the most confusable pairs.

Orthographic DNA of adherence vs adherent

Shared letters: adehnr. Private to "adherence": c. Private to "adherent": t.

"adherence" · 9 letters · shape VCCVCVCCV · "adherent" · 8 letters · shape VCCVCVCC

Known mistypes of this pair

adherence ← addherence · adehrence · adheernce · adherance · adherecne · adherencce · adherenec · adherennce
adherent ← addherent · adehrent · adheernt · adherennt · adherentt · adheretn · adhernet · adherrent

Frequency comparison

adherence#18,474

adherent#46,890

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "adherence" and "adherent" be used interchangeably?

No - they are not even the same part of speech. "adherence" is a noun and "adherent" an adjective, so a sentence built for one is usually ungrammatical with the other.

Which is more common, "adherence" or "adherent"?

"adherence" is the more common of the two: it sits at frequency rank #18,474 in our English list, against #46,890 for "adherent". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Remembering adherence vs adherent

The fastest way to pick the right one every time.

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