- not done or completed; unfinished
- ruined; destroyed
- unfastened; untied
WordReference Random House Learner's Dictionary of American English © 2026
un•done /ʌnˈdʌn/USA pronunciation
adj. [be + ~]loose;
not fastened:His shirt buttons were undone.
ruined:was undone by greed.
WordReference Random House Unabridged Dictionary of American English © 2026- not finished:work that was still undone.
not fastened:His shirt buttons were undone.
un•done1
(un dun′),USA pronunciation adj.
un•done2 (un dun′),USA pronunciation v.
adj.
- not done;
not accomplished or completed.
- Middle English un-dun. See un-1, done 1250–1300
un•done2 (un dun′),USA pronunciation v.
- pp. of undo.
adj.
- brought to destruction or ruin.
- unfastened.
Collins Concise English Dictionary © HarperCollins Publishers::
undone /ʌnˈdʌn/ adj
un•do /ʌnˈdu/USA pronunciation
v. [~ + object], -did, -done, -do•ing.
WordReference Random House Unabridged Dictionary of American English © 2026- to reverse the doing of;
repair or erase:to undo the damage. - to untie;
unfasten:She undid her straps.
un•do
(un do̅o̅′),USA pronunciation v.t., -did, -done, -do•ing.
un•do′a•ble, adj.
- to reverse the doing of;
cause to be as if never done:Murder once done can never be undone. - to do away with;
erase;
efface:to undo the havoc done by the storm. - to bring to ruin or disaster;
destroy:In the end his lies undid him. - to unfasten by releasing:to undo a gate; to undo a button.
- to untie or loose (a knot, rope, etc.).
- to open (a package, wrapping, etc.).
- [Archaic.]to explain;
interpret.
- bef. 900; Middle English; Old English undōn; cognate with Dutch ontdoen. See un-2, do1
Collins Concise English Dictionary © HarperCollins Publishers::
undo /ʌnˈduː/ vb ( -does, -doing, -did, -done) (mainly tr)
- (also intr) to untie, unwrap, or open or become untied, unwrapped, etc
- to reverse the effects of
- to cause the downfall of
'undone' also found in these entries (note: many are not synonyms or translations):
hitch
- irrevocable
- ladder
- leave
- run
- unfasten
- Gordian
- half-undone
- indissoluble
- inextricable
- lorn
- pretermit
- undo
- unknit
- unstuck
- slack