B1adverb2K

Possibly

UK /["/ˈpɒsəbli/"]/US /["/ˈpɑːsəbli/"]/

Definition

used to say that something might exist, happen or be true, but you are not certain

In simple words: maybe or maybe not; not sure

Examples

  • It could possibly rain tomorrow, so take an umbrella.
  • She is possibly the best candidate for the job.
  • We might possibly finish the project earlier than expected.
  • He possibly left his keys at home.
  • There is possibly a misunderstanding in the instructions.

Usage notes

Use 'possibly' when you want to express uncertainty or doubt about something. It's generally neutral, suitable for both spoken and written contexts, but avoid it in very formal writing where you might prefer words like 'potentially'.

Grammar pattern

possibly + verb

Memory hint

Think of 'possible' with a little twist of doubt, like a question mark at the end.

Collocations

  • possibly true
  • possibly available
  • possibly dangerous

Synonyms

  • perhaps

Antonyms

  • definitely
  • certainly

Common mistakes

  • 'Possibly' is often confused with 'probably'—they mean different things.
  • Learners may omit 'possibly' in sentences where it's needed.
  • Some learners incorrectly use 'possibly' with the gerund form (e.g., 'possibly going').