From my experience, it seems that although unstable is more commonly used, instable is often preferred in engineering and scientific contexts, e.g. "aircraft instability", "instable algorithm". Are ...
Suffix -able adds meaning "being able" to a word. I know that. Prefix in- and un- mean "not" or some negative meaning. I know that. However, when it comes to mixing of these, I am confused. ...
Possible Duplicate: Why “unequal” but “inequality”? Origins of negative prefixes like in-, un-, il-, ir-, dis-, a- There are a lot of prefixes for meaning ...
Rule to determine when to use the prefix “im” vs. “un” to negate a word starting with “p”? [duplicate]
Possible Duplicate: Negation prefixes: un-, dis-, a-, in-, … The prefix un is commonly used to negate a word, but is is quite rare with words that start with the letter p; the prefix ...
I've read here about origins of in- and un- negative prefixes. Are there any known origins of other negative prefixes such as il-, ir-, dis-, a-?
The opposite of "equal" is "unequal", yet there is no word "unequality". Why do we use "inequality" instead?
Is there a difference between these two words? To me, it seems that undistinguishable is more where you can't tell what it is, and indistinguishable seems to be where they're the same. It seems a lot ...
Are there any patterns to observe in choosing the correct prefix to use? There are other prefixes as well, but these are usually the ones I mix up. As in unbelievable, disproportionate, asymmetric, ...