in a measure; to a certain extent; somewhat: rather good.
in some degree: I rather thought you would regret it.
more properly or justly; with better reason: The contrary is rather to be supposed.
sooner; more readily or willingly: to die rather than yield.
more properly or correctly speaking; more truly: He is a painter or, rather, a watercolorist.
on the contrary: It's not generosity, rather self-interest.