English Reference
adjective

careful

adj.
US /ˈkɛɹfəɫ/ UK /kˈeəfəl/ care·ful

  1. 01 A2 Elementary

    thinking about what you are doing so that you do not have an accident or cause damage.

    exercising caution to avoid physical danger, injury, or damage.

    Simple

    Please be careful with that glass vase because it is very expensive.

    In context

    The mountain guide warned the hikers to be careful of loose rocks as they navigated the narrow ridge.

    Pitfall
    Be careful for the wet floor. Be careful of the wet floor.

    Use 'of' or 'with' after careful when pointing out a specific danger.

  2. 02 B1 Intermediate

    giving a lot of attention to details to make sure something is correct.

    showing great attention to detail; meticulous and thorough in execution.

    Simple

    After a careful check of the numbers, she found the mistake in the report.

    In context

    A careful analysis of the data revealed several trends that the initial research team had completely overlooked.

Usage careful human · careful selection · careful consideration


From Middle English careful, from Old English carful; equivalent to care + -ful.

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

This entry
Origin Old English carful
Level A2 · Elementary
Frequency Common
Updated