not readable; undecipherable; scribbled: His scrawl was almost unreadable.
not interesting to read; dull; tedious; an unreadable treatise.
extraordinarily difficult to read or comprehend; obscure; incomprehensible: an unreadable dream; an unreadable expression.
- un·read·a·bil·i·ty, un·read·a·ble·ness, noun
- un·read·a·bly, adverb
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use unreadable in a sentence
Digital storage systems can become unreadable in as little as three to five years.
Cryptographic algorithms turn readable data into a secret, unreadable form so it can be safely shared on the open internet.What are quantum-resistant algorithms—and why do we need them? | Tammy Xu | September 14, 2022 | MIT Technology Review
Digital media ages badly—technology leaping ahead so quickly that our pixelated past will be rendered unreadable before we get a chance to transfer it to a new system.What We Have In Common With Humans Of 23,000 Years Ago | Susanna Schrobsdorff | October 5, 2021 | Time
The Braille on the columns is completely unreadable because the dots are indented.A disabled president’s memorial still isn’t fully accessible to disabled visitors, a new report finds | Theresa Vargas | May 19, 2021 | Washington Post
Some researchers argue this makes the knowledge and discoveries discussed in the articles unreadable to both scientists and lay people alike.Why scientific papers are growing increasingly inscrutable | Hannah Seo | August 25, 2020 | Popular-Science
Conversely, terrible writing on page one (the case with several exciting mega-bestsellers) renders something unreadable for me.
Hamilton would soak the cardboard packaging of the EPO until the label was unreadable.Lance Armstrong’s Teammate Tells All: ‘The Secret Race’ By Tyler Hamilton | The Daily Beast | September 8, 2012 | THE DAILY BEAST
The handwriting on the short note is a combination of odd angled block letters and an unreadable signature.
Their books tried hard to be edgy and hipper-than-thou, but ended up being an unreadable mess instead.
I thought about that quip later in the interview when Doyle offered the opinion that James Joyce was nearly unreadable.
Graduates that have been in use a long time, especially for measuring alkalies, become unreadable.The Boy Mechanic, Book 2 | Various
Here two tremendous patches of ink left some words that followed quite unreadable.The Knight Of Gwynne, Vol. II (of II) | Charles James Lever
On the other hand, Cabbalistic works become almost unreadable on account of the prevalence of Semitic over German words.
Most of the book is altogether unreadable from any human point of view, as I feel only too well in my deluge of proofs.The Letters of William James, Vol. 1 | William James
It is unreadable, and to quote his own sensible words, ‘It is useless to criticise what nobody reads.’Obiter Dicta | Augustine Birrell
British Dictionary definitions for unreadable
difficult or tedious to read
- unreadability or unreadableness, noun
- unreadably, adverb
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012