Complete List of Prefixes

Companies often use prefixes in their domain name to create great sounding/looking brands.

Examples: Netflix, Autodesk, Uber, Unilever, UnderArmour

🔹 Negative / Opposite Prefixes

Prefix	Meaning	Examples
a-	not, without	amoral, atypical
an-	not, without (before vowels)	anarchy, anemia
anti-	against, opposite	antiwar, antibiotic
contra-	against, opposite	contradict, contraband
counter-	opposite, opposing	counteract, counterattack
dis-	not, opposite of	disagree, disconnect
il-	not (before ‘l’)	illegal, illogical
im-	not (before ‘m’ or ‘p’)	impossible, impolite
in-	not	inactive, incapable
ir-	not (before ‘r’)	irregular, irresponsible
mal-	bad, wrong	malfunction, malnourished
mis-	wrongly, badly	misplace, misunderstand
non-	not	nonfiction, nonstop
un-	not, opposite of	unhappy, undo

🔹 Number / Quantity Prefixes

Prefix	Meaning	Examples
bi-	two	bicycle, bilingual
cent-	hundred	century, centipede
deca- / dec-	ten	decade, decimal
demi-	half	demigod, demitasse
hemi-	half	hemisphere, hemicycle
mono-	one	monologue, monorail
multi-	many	multicultural, multiverse
oct- / octa-	eight	octagon, octopus
penta-	five	pentagon, pentathlon
poly-	many	polygon, polytheism
quad- / quart-	four	quadrangle, quarter
semi-	half, partly	semicircle, semiannual
tri-	three	triangle, tricycle
uni-	one	unicycle, uniform

🔹 Time / Order Prefixes

Prefix	Meaning	Examples
ante-	before	antecedent, antebellum
fore-	before	foresee, forewarn
post-	after	postwar, postgraduate
pre-	before	predict, prehistoric
pro-	forward, before	progress, proactive
re-	again, back	return, rebuild
retro-	backward	retroactive, retrograde

🔹 Degree / Size / Comparison Prefixes

Prefix	Meaning	Examples
arch-	chief, main	archenemy, archduke
hyper-	over, excessive	hyperactive, hypertension
hypo-	under, below	hypodermic, hypothermia
macro-	large, long	macroeconomics, macro lens
mega-	large, great	megabyte, megaphone
micro-	small	microscope, microbe
mini-	small	miniskirt, minivan
over-	too much	overeat, overwork
sub-	under, beneath	subway, submerge
super-	above, beyond	superstar, superhuman
sur-	over, above	surcharge, surpass
under-	too little, beneath	underpaid, underdeveloped
ultra-	beyond, extreme	ultraviolet, ultrafast

🔹 Direction / Location Prefixes

Prefix	Meaning	Examples
circum-	around	circumference, circumvent
dia-	through, across	dialogue, diameter
en- / em-	in, into	encode, empower
ex-	out of, former	export, ex-president
extra-	outside, beyond	extraordinary, extraterrestrial
in- / im-	in, into	insert, import
inter-	between, among	interact, international
intra-	within	intranet, intravenous
intro-	into, inward	introduce, introspect
ob-	toward, against	obstacle, obstruct
per-	through, thoroughly	perceive, permeate
peri-	around	perimeter, periscope
trans-	across, beyond	transport, translate

🔹 Judgment / Attitude Prefixes

Prefix	Meaning	Examples
bene-	good	beneficial, benevolent
eu-	good, well	eulogy, euphemism
pseudo-	false	pseudonym, pseudoscience
pro-	in favor of	promote, pro-democracy

🔹 Other Common Prefixes

Prefix	Meaning	Examples
auto-	self	autograph, automatic
co- / com- / con-	with, together	cooperate, combine, connect
de-	reverse, down	defrost, descend
e- / ex-	out, from	eject, exit
iso-	equal	isometric, isotope
neo-	new	neologism, neonatal
pan-	all	panorama, pandemic
para-	beside, related to	parallel, paranormal
syn- / sym-	with, together	synthesis, symphony
tele-	distant	telephone, television