Definition

1. Adjective:
   • Impossible to understand or interpret: Used to describe something, such as writing, a message, or a code, whose meaning cannot be determined or read.
   • Not easily deciphered: Describes something that is extremely difficult to make out, interpret, or understand due to its complexity, poor quality, or obscurity.

Usage and Examples

• Describing unreadable text:
  • The ancient manuscript was faded and indecipherable.
  • His handwriting is completely indecipherable; I can't read a single word.
• Describing an unintelligible message or sound:
  • The radio transmission was garbled and indecipherable.
  • The meaning of the cryptic note remained indecipherable to the detectives.

Advanced Usage

• Figurative use for abstract concepts:
  • Her motives for leaving were indecipherable to everyone who knew her.
  • The stock market's movements can seem indecipherable to new investors.

Variants and Related Words

• Indecipherably (adverb): In a manner that cannot be deciphered.
  • The words were scrawled indecipherably across the page.
• Indecipherability (noun): The quality or state of being indecipherable.
  • The indecipherability of the code frustrated the cryptanalysts.

Synonyms

• Illegible: (Of writing or print) impossible or very hard to read.
• Unintelligible: Impossible to understand.
• Incomprehensible: Not able to be understood; nonsensical.
• Unreadable: Too dull or difficult to be worth reading; also used for illegible text.

Antonyms

• Decipherable: Able to be understood or interpreted.
• Legible: (Of handwriting or print) clear enough to read.
• Intelligible: Able to be understood; comprehensible.
• Clear: Easy to perceive, understand, or interpret.

Notes on Meaning

• Primary Meaning: The core meaning of "indecipherable" relates to the failure to extract meaning from a symbolic system (like writing, code, or speech). It implies a barrier to comprehension.
• Nuance: While "illegible" specifically refers to poor physical quality of text, "indecipherable" can apply more broadly to any signal, code, or behavior that defies interpretation, even if it is physically clear. For example, a complex mathematical formula might be clearly printed (legible) but still indecipherable to a non-mathematician.

Adjective

1. impossible to determine the meaning of
   • an indecipherable message
2. not easily deciphered
   • indecipherable handwriting