Prefixes

Negatives

100

This prefix is used to mean "not," add this to a word and it will make it the opposite.

Un-

Uncomfortable

200

This prefix used to mean "not," add this to a word and it means an absence of something (rather than an opposite). 

Non-

When camping, food is an essential. Pencils are nonessential, though they can always be useful! 

300

This prefix is used to mean "not" as well as a "reversal" or "removal" of something.

Dis-

I dislike (do not like) having to disassemble (undo the assembly) my Legos. 

400

This prefix is used to mean "not," add it to a word and it will make the opposite of that word. It's a less common version of "un-." 

In-

Inactive

500

This prefix is used to mean "not," you can think of it as a way to say "in-" when "in-" sounds weird with the word. 

Im-

Impossible!

Number/Amount

100

This prefix means "two," add it to a word and it means double. 

Bi -

Bicycle, bilingual

200

This prefix means "multiple," add it to a word and it means there are a lot. 

Multi - 

Multipurpose, multitask

300

This prefix means "half," add it to a word and it means only in part or somewhat. 

Semi-

Semifictional

400

This prefix means "too much," add it to a word and it means too many or too much. 

 Over-

Overpromise, oversleep

500

This prefix has two meanings. Add it to a word and it will mean "too little" or literally "under." 

Under-

Undercooked, underwater

Location

100

This prefix means "under," add it to a word and it means "under." (NOT "UNDER-")

Sub-

Submarine

200

This prefix means "across"

Trans-

Transportation, translate

300

This prefix means "inside" or "within," it's used to talk about one thing. 

Intra-/Intro-

Introspective, internal

400

This prefix means "great," which may be talking about quality or size. 

Super-

Superman, superboat 

500

This prefix means "between" or "within" a group. 

Inter-

Internet, intermingle

Time

100

This prefix means "before" or "in front of"

Pre-

Preview, predict

200

This prefix means "after" or "behind."

Post-

Postpone

300

This prefix means "again."

Re-

Rename, rewatch

400

This prefix means "before" or "earlier."

Fore-

Foresee, forecast

500

This prefix can mean "before" OR it can mean "in support of"

Pro-

Pro-animals, proactive

Size

100

This prefix means "small" (NOT "MINI")

Micro-

Microscope, micropurse

200

This prefix means "small" (NOT "MICRO")

Mini-

Minivan, mini-lunch

300

This prefix means "big"

Macro-

Macro-lens, macroeconomics 

400

This prefix means "big" in terms of amounts, think of it like "super."

Mega-

Megaparty

500

This prefix means "a lot" or "too much" when talking about a describing word. 

Hyper-

Hypercritical