psychologicalvspsychologicallyWhat's the difference?

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

Which to use

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

#4,549
“psychological” frequency rank
#18,403
“psychologically” frequency rank
22952
confusion score

Side-by-Side Comparison

Feature psychological psychologically
Definition Of or pertaining to psychology. In a psychological sense.

Where the spellings diverge

Shared letters are muted; the letters that actually set psychological and psychologically apart are highlighted. They share 13 letters in sequence, which is exactly why the eye skips the difference.

13 ch
psychological
15 ch
psychologically

Spelling & Dictionary Insight

Our dataset has no pronunciation recorded for both members, so the reliable separator here is grammatical: psychological is anadjective and psychologicallyanadverb. On the page they differ by 2 extra letter(s) - “psychological” sits inside “psychologically”. Our composite confusion score for this pair is 22952, derived from the frequency rank of both members and their visual similarity.

psychological is recorded at frequency rank #4,549, classified as anadj, pronounced /ˌsaɪ.kəˈlɒd͡ʒ.ɪ.kl̩/. psychologically is at rank #18,403, 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 22952, this pair ranks #412,835 of 530,003 scored English confusable pairs - a relatively easy-to-tell-apart pair.

Orthographic DNA of psychological vs psychologically

Shared letters: acghilopsy. Private to "psychological": -. Private to "psychologically": -.

"psychological" · 13 letters · shape CCVCCVCVCVCVC  ·  "psychologically" · 15 letters · shape CCVCCVCVCVCVCCV

Known mistypes of this pair

  • psychologicalppsychological · pscyhological · pssychological · psycchological · psychhological · psychloogical · psycholgoical · psychollogical
  • psychologicallyppsychologically · pscyhologically · pssychologically · psycchologically · psychhologically · psychloogically · psycholgoically · psychollogically

Frequency comparison

psychological#4,549
psychologically#18,403

Source: FrequencyWords open word-frequency list

Frequently Asked Questions

Can "psychological" and "psychologically" be used interchangeably?
No - they are not even the same part of speech. "psychological" is an adjective and "psychologically" an adverb, so a sentence built for one is usually ungrammatical with the other.
Which is more common, "psychological" or "psychologically"?
"psychological" is the more common of the two: it sits at frequency rank #4,549 in our English list, against #18,403 for "psychologically". The two are close in frequency, so neither is a safe default; check the meaning rather than guessing.

Remembering psychological vs psychologically

The fastest way to pick the right one every time.

  • Check the role first: if you need an adjective, it's “psychological”; for an adverb, it's “psychologically”.
  • See each word in full, definition, IPA, etymology and its other confusables. Full “psychological” 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