Informal words are commonly used in relaxed conversations, text messages, social media, and everyday communication with friends and family. They include familiar words and expressions such as awesome, buddy, comfy, gonna, and yep, which can make casual speech sound more natural and friendly. Learning informal words in English is a useful way to improve everyday vocabulary while understanding how people communicate in relaxed situations. In this article, you will learn informal words list A to Z with clear pictures, helping students, teachers, beginners, travelers, and English learners easily understand, remember, recognize, and use common informal vocabulary appropriately and confidently.
Informal Words That Start with A
- Ace
- Awesome
- Ain’t
- ASAP
- Airhead
- Amped
- All-nighter
- Awks
- A-okay
- Around
- Add-on
- App
- Adulting
- Atta
- Ahh
- Alright
- Antsy
- Arty
- Aggro
- Aww
Informal Words That Start with A
Informal Words That Start with B
- Buddy
- Bro
- Babe
- Bummer
- Boo
- Boss
- Binge
- Bloke
- Busted
- Bonkers
- Bucks
- Buzz
- Ballpark
- Bail
- Brag
- Beat
- Bang
- Basic
- Bae
- Blast
Informal Words That Start with B
Informal Words That Start with C
- Cool
- Chill
- Crap
- Cheers
- Couch
- Cash
- Cheesy
- Chatter
- Crash
- Clueless
- Choppy
- Creepy
- Cranky
- Choco
- Champ
- Catch-up
- Cya
- Click
- Cheapo
- Cop
Informal Words That Start with C
Informal Words That Start with D
- Dude
- Dang
- Dope
- Ditch
- Dork
- Dunno
- Drama
- Deal
- Deadbeat
- Dig
- Downer
- Drop
- Dusty
- Dash
- Double
- Doodle
- Dizzy
- Darn
- Dreamy
- Dub
Informal Words That Start with D
Informal Words That Start with E
- Easy-peasy
- Eh
- Epic
- Extra
- Ew
- Excuse-me
- Empty
- Eek
- Energy
- Else
- Emoji
- Everyday
- Escape
- Endgame
- Eww
- Electric
- Express
- Edge
- Encore
- Enjoy
Informal Words That Start with E
Informal Words That Start with F
- Fab
- Facepalm
- Fake
- Fam
- Fancy
- Fast-track
- Fatso
- Fella
- Fetch
- Fidget
- Fierce
- Fine
- Fire
- Fishy
- Fit
- Flake
- Flashy
- Flip
- Flop
- Freak
Informal Words That Start with F
Informal Words That Start with G
- Gab
- Gamer
- Geek
- Gimme
- Gist
- Glad
- Glitch
- Gloomy
- Goofy
- Gosh
- Gotta
- Grab
- Grin
- Gross
- Grumpy
- Guess
- Gulp
- Gutsy
- Guy
- Guzzler
Informal Words That Start with G
Informal Words That Start with H
- Hack
- Hangout
- Happy-go-lucky
- Hard-pass
- Hassle
- Heck
- Hella
- Hiya
- Hilarious
- Hit
- Hmmm
- Hobby
- Hocus-pocus
- Hog
- Hooray
- Hop
- Hotshot
- Huddle
- Huh
- Hype
Informal Words That Start with H
Informal Words That Start with I
- Icky
- IDK
- Ill
- Impress
- Inbox
- Indeed
- Insta
- Into
- Itty-bitty
- IYKYK
- Icebreaker
- Iconic
- Imagine
- Impromptu
- In-joke
- Inside
- Irk
- Itch
- Iced
- Irony
Informal Words That Start with I
Informal Words That Start with J
- Jabber
- Jackpot
- Jam
- Jerk
- Jiffy
- Jiggle
- Jinx
- Jittery
- Jock
- Join
- Joker
- Jolly
- Juiced
- Jumpstart
- Junk
- Just-kidding
- Jazzed
- Jeepers
- Juggle
- Jam-packed
Informal Words That Start with J
Informal Words That Start with K
- Keen
- Keep-up
- Ketchup
- Kickback
- Kick-off
- Kiddo
- Kinda
- Kingpin
- Knockout
- Knock
- Kudos
- Kooky
- Kryptic
- Keyed-up
- Knackered
- Kick
- Klutz
- Kicks
- Know-how
- Keeper
Informal Words That Start with K
Informal Words That Start with L
- Lame
- Later
- Laughable
- Legit
- Lemme
- Lighten-up
- Lit
- Loaded
- Loosen-up
- Loudmouth
- Lovey
- Lucky
- Lurk
- Lush
- Lippy
- Look-see
- Low-key
- Lump
- Loco
- Laugh-out-loud
Informal Words That Start with L
Informal Words That Start with M
- Mate
- Meh
- Messy
- Mingle
- Moody
- Mooch
- Mash-up
- My-bad
- Mad
- Mega
- Mellow
- Mind-blown
- Missus
- Mock
- Munch
- Mumbo-jumbo
- Muscles
- Miffed
- Move-over
- Mystery
Informal Words That Start with M
Informal Words That Start with N
- Nah
- Nailed-it
- Nerd
- Neat
- Nifty
- Noob
- Nope
- Nuts
- Nutty
- Nudge
- Nosh
- Nosey
- Nonsense
- No-way
- Nip
- Nick
- Night-owl
- Nippy
- No-brainer
- Nice-one
Informal Words That Start with N
Informal Words That Start with O
- Oops
- Okay
- Okey-dokey
- OMG
- On-the-go
- On-point
- Open-up
- Outta
- Overdo
- Overkill
- Oddball
- Offbeat
- Old-school
- Ouch
- Overreact
- Own-up
- Outsmart
- Overthink
- Offload
- Over-the-top
Informal Words That Start with O
Informal Words That Start with P
- Pal
- Peeps
- Pick-me-up
- Piece-of-cake
- Picky
- Pig-out
- Pinky-promise
- Pissed
- Playdate
- Plug
- Pop-in
- Posh
- Potluck
- Pretty-much
- Priceless
- Props
- Puffy
- Pushy
- Puke
- Pumped
Informal Words That Start with P
Informal Words That Start with Q
- Quack
- Quickie
- Quirky
- Quitter
- Quip
- Quicky
- Quids
- Quench
- Quarrel
- Quieto
- Quiver
- Quackery
- Quicky-break
- Quirk
- Quote-me
- Queue-up
- Quizzed
- Quota
- Quibble
- Queenie
Informal Words That Start with Q
Informal Words That Start with R
- Rad
- Rant
- Rascal
- Rattle
- Real-deal
- Reckon
- Relax
- Ripped
- Rock
- Rookie
- Roomie
- Rough-up
- Round-up
- Rub-in
- Rubbish
- Run-in
- Rush
- Rusty
- Riled-up
- Righto
Informal Words That Start with R
Informal Words That Start with S
- Sick
- Sis
- Skint
- Sketchy
- Slacker
- Slam
- Slay
- Slick
- Smiley
- Snack
- Snag
- Snooze
- So-so
- Spree
- Stoked
- Stuff
- Sweet
- Swag
- Swipe
- Swoop
Informal Words That Start with S
Informal Words That Start with T
- Takeaway
- Talkative
- Tasty
- Tease
- Techie
- Tell-off
- Thanks
- Thick
- Thumbs-up
- Tidy
- TMI
- Totes
- Toughie
- Trash
- Treat
- Trendy
- Tricksy
- Troublemaker
- Tubby
- Twinning
Informal Words That Start with T
Informal Words That Start with U
- Uh-oh
- Uh-huh
- Umpteen
- Uncool
- Underdog
- Unfollow
- Unglued
- Unwind
- Upbeat
- Update
- Upload
- Upset
- Up-for-it
- User-friendly
- Use-up
- U-turn
- Unbox
- Unreal
- Uhm
- Unplug
Informal Words That Start with U
Informal Words That Start with V
- Vibe
- Vibing
- Video-call
- VIP
- Vroom
- Veg-out
- Vent
- Victory
- Vintage
- Viral
- Voice-note
- Volley
- Volunteer
- Vouch
- Vamoose
- Value-for-money
- Vanilla
- Visible
- Vogue
- Vexed
Informal Words That Start with V
Informal Words That Start with W
- Wanna
- Watch-out
- Whatever
- Whiz
- Wicked
- Wiggle
- Wild
- Wingman
- Wipeout
- Wired
- Wishy-washy
- Woah
- Woke
- Workaholic
- Wrap-up
- Wrecked
- Yikes
- Whoops
- Whatcha
- Win-win
Informal Words That Start with W
Informal Words That Start with X
- XOXO
- Xtra
- X-factor
- X-ing
- Xtreme
- X-ray
- Xbox
- Xylophone
- Xerox
- Xpress
- Xcellent
- Xplorer
- X-out
- Xeno
- X-act
- Xtra-large
- X-cited
- Xchange
- Xpert
- Xenial
Informal Words That Start with X
Informal Words That Start with Y
- Ya
- Y’all
- Yay
- Yeah
- Yep
- Yo
- Yikes
- Yummy
- Yippee
- Youngster
- Your-bad
- Yup
- Yawn
- Yak
- Yahoo
- Yolo
- Yuck
- Yabber
- Yard
- Yes-sir
Informal Words That Start with Y
Informal Words That Start with Z
- Zap
- Zapped
- Zesty
- Zigzag
- Zilch
- Zing
- Zinger
- Zippy
- Zoned-out
- Zoom-in
- Zoom-out
- Zonked
- Zoooom
- Zowie
- Zip
- Zeroed-in
- Zappy
- Zonk
- Zest-up
- Zoom
Informal Words That Start with Z
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