---
title: "BIP39 Word #1921: useless — Seed Phrase Mnemonic Word"
url: "https://bip39-phrase.com/bip39-word/useless/"
language: "en"
updated: "2026-10-19T00:00:00+00:00"
---

Word #1921 11110000000 

# useless — BIP39 word #1921

"**useless**" is word #1921 of the 2048 words in the official BIP39 English wordlist, between [useful](/bip39-word/useful/) and [usual](/bip39-word/usual/). In a seed phrase it stands for the 11-bit value `11110000000`, decimal index 1920\. 

/ˈjuːsləs/  · _adjective:_ not helpful or not working, serving no purpose 

[Russian](/ru/ "The BIP39 wordlist with Russian translations"): бесполезный 

## Binary Representation

Four 1-bits and seven 0-bits; 330 of the 2048 indexes have exactly four 1-bits.

One wrong bit turns it into (leftmost bit first):

[hybrid](/bip39-word/hybrid/)[quote](/bip39-word/quote/)[source](/bip39-word/source/)[theme](/bip39-word/theme/)[way](/bip39-word/way/)[village](/bip39-word/village/)[velvet](/bip39-word/velvet/)[valve](/bip39-word/valve/)[vacuum](/bip39-word/vacuum/)[utility](/bip39-word/utility/)[usual](/bip39-word/usual/) 

Position

Hex Index

0x780

4-Letter Prefix

usel

## About "useless" in BIP39

- "useless" has 7 letters, but the first four, **"usel"**, already identify it, because **"use"** also begins [use](/bip39-word/use/), [used](/bip39-word/used/) and [useful](/bip39-word/useful/).
- Its first letters also spell another BIP39 word, [use](/bip39-word/use/). Write "useless" out in full: cut short, it turns into a different valid word.

## Word #1921 in the Other 9 BIP39 Wordlists

[Czech](/czech/) vzdor 

[French](/french/) tricoter 

[Italian](/italian/) ultimato 

[Japanese](/japanese/) やっと 

[Korean](/korean/) 한꺼번에 

[Portuguese](/portuguese/) travar 

[Spanish](/spanish/) truco 

[Traditional Chinese](/chinese-traditional/) 拆 

[Simplified Chinese](/chinese-simplified/) 拆 

## Similar Words — Check Carefully During Recovery

Words sharing the first three letters "use":

[use](/bip39-word/use/)[used](/bip39-word/used/)[useful](/bip39-word/useful/) 

## More BIP39 Words Starting with "U"

[ #1889 ugly ](/bip39-word/ugly/)[ #1890 umbrella ](/bip39-word/umbrella/)[ #1917 usage ](/bip39-word/usage/)[ #1918 use ](/bip39-word/use/)[ #1919 used ](/bip39-word/used/)[ #1920 useful ](/bip39-word/useful/)[ #1922 usual ](/bip39-word/usual/)[ #1923 utility ](/bip39-word/utility/) 

[View all words starting with "U" ](/bip39-words/u/) 

## Seed phrase, key and recovery guides

- [How to View & Recover Bitcoin Wallet.dat Content](/how-to-view-and-recover-bitcoin-wallet-dat-content/)
- [Bitcoin Private Key Format: WIF, Base58 and Hex Explained](/private-key-btc/)
- [How to Encrypt a Seed Phrase: AES, XOR and Steganography](/seed-phrase-encrypting-with-aes-xor-and-steganography/)

[ Full BIP39 Wordlist ](/)