adjective

undurchdacht

ill‑conceived

Definition & meaning

Undurchdacht is an adjective meaning not well thought out, ill-considered, or poorly planned. It describes an idea, plan, decision, or action that has been made without adequately considering its consequences, practical details, or possible problems.

  • Der Plan ist undurchdacht. — “The plan is ill-considered.”
  • Diese Entscheidung wirkt undurchdacht. — “This decision seems poorly thought out.”

It can also imply that something is hasty, incomplete, or lacking careful reasoning.

Grammar & word origin

  • Part of speech: adjective; also used as a past participle.
  • Comparative: undurchdachter
  • Superlative: am undurchdachtesten
  • Opposite: durchdacht

The word consists of:

  • un- — a prefix expressing negation or the opposite
  • durchdacht — “thought through,” from durchdenken , “to think something through”

Literally, undurchdacht means “not thought through.”

Synonyms & antonyms

Synonyms

  • unüberlegt — thoughtless or not carefully considered; often emphasizes acting without reflection.
  • unausgereift — immature or not fully developed; especially common for ideas, concepts, and plans.
  • unvernünftig — unreasonable or lacking good judgment; focuses more on irrationality than on insufficient planning.
  • planlos — without a clear plan or direction; does not necessarily suggest that the idea itself is badly considered.
  • vorschnell — premature or hasty; emphasizes that something was decided too quickly.

Antonyms

  • durchdacht — carefully thought through and logically developed; the direct antonym.
  • überlegt — considered and deliberate, often referring to a decision or action.
  • gut geplant — well planned, with practical preparation and organization.
  • ausgereift — fully developed and mature, especially for ideas, products, or concepts.

Common phrases & collocations

  • ein undurchdachter Plan — an ill-considered plan
  • eine undurchdachte Entscheidung — a poorly considered decision
  • ein undurchdachtes Konzept — an inadequately developed concept
  • undurchdachte Maßnahmen — ill-considered measures
  • völlig undurchdacht — completely thoughtless or poorly conceived
  • etwas als undurchdacht kritisieren — to criticize something as ill-considered

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Examples

Der Plan ist undurchdacht.adjective

The plan is ill‑conceived.

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