Here's what rhymes with relatively.

Consider these alternatives

comparatively / imperatively quite / might less / death though / so very / necessary unusually / usually although / so low / no somewhat / what small / all far / are otherwise / size usually / unusually inexpensive / extensive stable / able few / you despite / might reasonably / seasonably remained / obtained unlike / like remain / main however / never large / part nevertheless / less compared / help seem / seen too / to seems / means