PREFIXES & SUFFIXES

MOST COMMON PREFIXES

DIS- (not, opposite of)	IM- (in/not)	IN- (in/not)
Disagree Disapear Disconnect	Impatient Imperfect Impolite	Inactive Incomplete Incorrect

 

IL- (in/not)	IR- (in/not)	INTER- (betwen)
Illegal Illimited Illogic	Irregular Irresponsible Irreparate	Interact Intercity Intergalactic

 

MIS- (wrongly)	PRE- (before)	RE- (again)
Misbehave Misreas Misuse	Prearrange Precook Prepaid	Reappear Recount Refill

 

UN- (not)	ANTI- (against)	DE- (opposite)
Unable Unfriendly Uncommon	Antibacterial Antiair Antibiotics	Defrost Deactivate Deodorize

 

EN- (cause to)	EM- (cause to)	FORE- (before)
Encode Enforce Enjoy	Embrace Emphasis Empty	Forecast Forefront Forename

 

MID- (middle)	NON- (not)	OVER- (over)
Midnight Midway Midline	Nonsense Nonadherent Nonallowed	Overlook Overact Overall

 

SEMI- (half)	SUB- (under)	SUPER- (above)
Semicircle Semicompact Semiurban	Submarine Subdivision Subgroup	Superstar Supermarket Superpower

 

TRANS- (across)	UNDER- (under)
Transport Translate Transformation	Undersea Underkeep Understand

MOST COMMON SUFFIXES

-ABLE (can be done)	-EN (made of/verb)	-ER (comparative/one who)
Admirable Teachable whashable	Darken Wooden Sharpen	Driver Manager Higher

 

-FUL (full of)	-IBLE (can be done)	-ION (act, process)
Beautyful Careful Useful	Reversible Convertible Collectible	Action Decoration Explosion

 

-LESS (whithout)	-LY (characteristic of)	-NESS (state of, condition of)
Fearless Useless Careless	Badly Loudly Safely	Goodness Softness Sadness

 

-ED (past-tense verbs)	-EST (comparative)	-IC (having characteristics of)
Hopped Asked Allowed	Happiest Biggest Longest	Linguistic Fantastic Romantic

 

-ITY –TY (state of)	-IVE (adjective form of a noun)	-S –ES (more than one)
Infinity Reality Eternity	Plaintive Sensitive Talkative	Cat - Cats House – Houses Box - Boxes

 

-MENT (action, process)	-OUS (possessing the qualities of)	-Y (characterized by)
Enjoyment Employment Measurement	Joyous Gorgeous Serious	Happy Funny Moody