Illustration for Adverbs of Truth: Mastering Certainty and Emphasis

The Adverb of True: Truly

Adverbs 2 min read Updated 25 August 2026

The adverb of true is truly.

How truly is formed

Drop the silent -e, then add -ly: true → tru + ly = truly.

Most -e adjectives keep the letter (pure → purely, sincere → sincerely). Only a very short list drops it: true → truly, whole → wholly, due → duly. Learn those three and the rest follow the ordinary rule.

Truly in a sentence

The performance was truly remarkable. Intensifying, and stronger than really.
I truly believe she meant well. Sincerity rather than emphasis.
It is not truly a democracy. In the strict sense of the word.

Where it is actually used

Knowing the form is one thing; knowing the company a word keeps is what makes it sound natural. These are the patterns truly appears in most often.

truly remarkable / great / awful Intensifying an adjective.
truly believe / understand / regret Vouching for sincerity.
Yours truly A letter close, and also a jokey way of referring to oneself.

Truly or something else?

Several adverbs sit close to truly, and the difference is usually meaning rather than formality.

really Far more common in speech, and weaker. Truly sorry carries more weight than really sorry.
genuinely Almost identical in the sincerity sense, and slightly more neutral.
honestly Often warns that what follows may be unwelcome.

The mistake to watch for

Incorrect Correct
truely truly

The e is dropped. Truely is among the most common misspellings in English, precisely because it follows the rule that nearly every other -e adjective obeys.

Yours truly. As a letter close it is American and fairly formal. It also survives as a piece of self-deprecating slang: and who had to clean it up? Yours truly. The two uses are unrelated in tone and rarely confused in practice.

Related forms

Pronunciation: TROO-lee, two syllables.

Adjective true
Adverb truly
Noun truth
Same exception whole → wholly, due → duly

Practice

Fill the gap, then check yourself.

  1. That was a ___ extraordinary result.
  2. I am ___ sorry for the delay.
  3. The document was ___ signed and witnessed.

Answers: 1. truly   2. truly / genuinely   3. duly

Frequently asked

Why do true and whole drop the e when pure does not?
There is no rule behind it, only history. These spellings settled before English spelling was standardised, and they simply never regularised. They have to be memorised.

Author

  • Born in Miami, Florida, Mateo is a bilingual educator with a Master's in Spanish Education. He has spent the last decade developing Spanish curricula. Mateo is passionate about helping students master conversational Spanish and everyday vocabulary.

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