Find Synonyms

undecipherable Synonyms

Another word for undecipherable

Choosing another word for undecipherable depends on context, so the 13 synonyms and similar words below are separated across 2 exact definitions and ranked by match strength.
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• adjective (Context 1)

Not able to be read, decoded, or converted into intelligible language (especially of handwriting, text, or a coded message).

Usage Example

"The physician's hurriedly scribbled prescription was completely indecipherable to the pharmacist."

Strongest
indecipherable
illegible
unreadable
Strong
unintelligible
cryptic
garbled

• adjective (Context 2)

Impossible to understand, interpret, or make sense of (of a person's expression, behavior, or situation).

Usage Example

"She listened to the proposal with an inscrutable expression that gave away none of her thoughts."

Strongest
inscrutable
incomprehensible
unfathomable
Strong
enigmatic
impenetrable
obscure
perplexing

Opposites of undecipherable

The opposite of undecipherable shifts depending on context. Common opposites include:

decipherable
legible
comprehensible
understandable
readable
fathomable
transparent
clear
See all opposites of undecipherable

• Nearby Words

undeceived
undecided
undecidedly
undecipherable
undecipherably
undeciphered
undeclared

Cite this Entry

Wordmom. (2026). Synonyms for Undecipherable. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/synonyms/undecipherable
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