Foundation level · Year 4 · free
undo
verb · Say it: un-DOO
What it means
Foundationto open or loosen something that is tied or fastened
Grace could not undo the tight knot in her shoelace before PE.
Similar and opposite words
Synonyms (similar meaning)
- loosen
- unfasten
- untie
Antonyms (opposite meaning)
- do up
- fasten
- tie
More examples
- Please undo your coat buttons and hang it on your peg.
Where the word comes from
It comes from Old English 'undon', made from 'un-' and 'do'.
Try a quick question
One question about “undo”, the way 11+ papers ask it (Foundation level).