English Reference
adverb

surely

adv.
US /ˈʃʊɹɫi/ UK /ʃˈɔːli/ sure·ly

  1. 01 B1 Intermediate

    you use this when you are almost certain something is true and you expect others to agree.

    used to express a strong belief that something is true, often with an underlying tone of surprise or an appeal for confirmation.

    Simple

    Surely you aren't going out in this heavy rain without an umbrella?

    In context

    Surely the board must recognise that continuing with this strategy will lead to a significant deficit by the end of the fiscal year.

    Usage

    Often placed at the beginning of a sentence to challenge a previous statement or to seek agreement.

  2. 02 B2 Upper Intermediate

    happening in a steady way that does not fail, even if it is slow.

    in a reliable, steady, or inevitable manner; most common in the fixed phrase 'slowly but surely'.

    Simple

    The climbers moved slowly but surely toward the top of the mountain.

    In context

    The legal team worked slowly but surely to dismantle the witness's testimony, uncovering small inconsistencies over several days of cross-examination.

    Usage

    Frequently occurs in the idiomatic pairing 'slowly but surely'.

    uncertainlywaveringly
  3. 03 C1 Advanced Literary

    doing something in a way that shows you are sure of yourself.

    with a firm, confident, or steady manner that indicates a lack of hesitation.

    Simple

    She spoke surely and clearly, making everyone in the room listen.

    In context

    The surgeon moved surely, his hands showing no sign of the fatigue that usually follows a twelve-hour shift.

    Teacher's tip

    In modern spoken English, 'confidently' or 'steadily' is much more common for this sense; 'surely' used this way often feels formal or literary.

    hesitantly

From Middle English surely; equivalent to sure + -ly.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Origin Middle English surely
Level B1 · Intermediate
Frequency Common
Updated