---
title: "BIP39 Word #1178: nasty — Seed Phrase Mnemonic Word"
url: "https://bip39-phrase.com/bip39-word/nasty/"
language: "en"
updated: "2026-10-19T00:00:00+00:00"
---

Word #1178 10010011001 

# nasty — BIP39 word #1178

"**nasty**" is word #1178 of the 2048 words in the official BIP39 English wordlist, between [narrow](/bip39-word/narrow/) and [nation](/bip39-word/nation/). In a seed phrase it stands for the 11-bit value `10010011001`, decimal index 1177\. 

/ˈnɑːsti/  · _adjective:_ very unpleasant, unkind or dangerous 

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

## Binary Representation

Five 1-bits and six 0-bits; 462 of the 2048 indexes have exactly five 1-bits.

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

[basket](/bip39-word/basket/)[spring](/bip39-word/spring/)[rebel](/bip39-word/rebel/)[lobster](/bip39-word/lobster/)[open](/bip39-word/open/)[now](/bip39-word/now/)[muffin](/bip39-word/muffin/)[mutual](/bip39-word/mutual/)[neck](/bip39-word/neck/)[nature](/bip39-word/nature/)[narrow](/bip39-word/narrow/) 

Position

Hex Index

0x499

4-Letter Prefix

nast

## About "nasty" in BIP39

- "nasty" has 5 letters, but the first three, **"nas"**, already identify it, because **"na"** also begins [naive](/bip39-word/naive/), [name](/bip39-word/name/), [napkin](/bip39-word/napkin/), [narrow](/bip39-word/narrow/), [nation](/bip39-word/nation/) and [nature](/bip39-word/nature/). Three letters are enough for only 604 of the 2048 words.
- **"nast"** is unique only within the English list: it also begins nastrare in the [Italian list](/italian/) and nastat in the [Czech list](/czech/), so a four-letter backup should say which list it uses.

## Word #1178 in the Other 9 BIP39 Wordlists

[Czech](/czech/) pasivita 

[French](/french/) luxueux 

[Italian](/italian/) ornativo 

[Japanese](/japanese/) ちきゅう 

[Korean](/korean/) 영향 

[Portuguese](/portuguese/) lojista 

[Spanish](/spanish/) moreno 

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

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

## More BIP39 Words Starting with "N"

[ #1174 naive ](/bip39-word/naive/)[ #1175 name ](/bip39-word/name/)[ #1176 napkin ](/bip39-word/napkin/)[ #1177 narrow ](/bip39-word/narrow/)[ #1179 nation ](/bip39-word/nation/)[ #1180 nature ](/bip39-word/nature/)[ #1181 near ](/bip39-word/near/)[ #1182 neck ](/bip39-word/neck/) 

[View all words starting with "N" ](/bip39-words/n/) 

## Seed phrase, key and recovery guides

- [BIP 32 Explained: Hierarchical Deterministic Wallets](/bip-32/)
- [Can You Guess a Seed Phrase? Probability and Real Risks](/can-you-guess-a-seed-phrase-probability-and-real-risks/)
- [Crypto Inheritance: How to Pass On Your Seed Phrase](/crypto-inheritance/)

[ Full BIP39 Wordlist ](/)