Here's what rhymes with unfavorably.

Consider these alternatives

favorably / unfavorably favourably / unfavourably unfavourably / favourably compares / self unfavorable / favorable disapprove / use viewed / food disapproved / used sympathetically / theoretically disapproving / moving aligns / lines compare / their compared / help paralleled / help subjectively / effectively complimented / prevented ambivalent / equivalent disagreeing / being favorable / unfavorable unfavourable / favourable familiarizing / rising retrospectively / respectively correlated / created equated / dated