Immature
impossible
1000
what is the equivalent of the prefixes
impassible, impossible, immobile, improper, immodest, impersonal...
Non(a)- and dec(a)-
Some prefixes that start with "im-" include "impossible," "imperfect," and "immature." These prefixes typically indicate negation or reversal of the word following them.
impossible
The prefixes to informal are "un-" and "im-".
im
There are three prefixes for the word "press": re-, im-, and ex-.
The prefixes il, im, and ir all mean "not" or "opposite of." They are used to negate the meaning of the base word that follows them.
Some prefixes that are forms of the prefix "in" include: ir-, il-, im-.
Some common prefixes that create antonyms are "un-", "dis-", "in-", "im-", "non-", and "a-". Adding these prefixes to words can change their meaning to the opposite.
The prefixes IN- and UN- can be used with the word alter in several different words:InalterableInalterablenessInalterabilityInalterablyUnalterableUnalterabilityUnalterablyUnalteredUnaltering
compose
They are the same: in- becomes im- before a labial (b,m,p)
"Possible" doesn't have a prefix. You could add the prefix im- to it to make the word impossible.