Translation guide
How to express that something becomes unfastened, untied, or falls apart in Japanese.
The speaker notices or states that something like a shoelace, knot, button, or zipper has come loose or undone.
Intransitive verb meaning to come untied, come loose, or become undone. Used for knots, strings, shoelaces, etc.
My shoelace came undone.
The ribbon is about to come undone.
Intransitive verb meaning to come off, become detached, or come undone. Used for buttons, fasteners, zippers, or things that snap or fit into place.
The button came undone.
Your zipper is undone.
Intransitive verb meaning to become loose or slack. Used for screws, belts, or things that were tight but have loosened.
The screw has come undone (loose).
The speaker describes a plan, relationship, or physical object breaking down or collapsing.
Intransitive verb meaning to collapse, crumble, or fall apart. Can be used for physical structures or abstract things like plans or composure.
The plan came undone.
Phrase meaning to fall apart into pieces or become disjointed. Used for groups, objects, or plans.
The team came undone.
Metaphorically, can be used for emotional unraveling, though less common.
The speaker describes someone becoming emotionally overwhelmed or falling apart.
Use ほどける for things that are tied or knotted (shoelaces, ribbons). Use 外れる for things that are fastened by snapping, buttoning, or fitting (buttons, zippers, lids).
Do not translate 'come undone' literally as 来る + 元に戻らない or similar. Use the appropriate intransitive verb for the context.
He came undone mentally.
緊張がほどけた。
My tension came undone (I relaxed).