Somewhat (1,3)

(Another definition for a tad that I've seen is " Not much".)

(Other definitions for rather that I've seen before include "On the contrary or to some extent" , "Prefer" , "Quite, sort of" , "To a limited degree" , "Most certainly" .)

(Other definitions for fairly that I've seen before include "Justly, without favouring one party" , "Rather" , "Quite" , "To a moderate degree" , "Moderately" .)

(Other definitions for to a degree that I've seen before include "in some measure" , "Where students are heading" , "only so far" , "Somewhat" , "Where university course may lead" .)

(Other definitions for quasi that I've seen before include "Seemingly" , "Partly, semi-" , "Partly, to some degree" , "Prefix meaning as if, seeming to be but not really" .)

(Other definitions for moderately that I've seen before include "Within reason" , "Somewhat" .)