equally (part of speech: adverb)
similarly (part of speech: adverb)
- The new- comers mingled with the sheriff's party quite indistinguishably and made no further explanation of their presence. - "The Captain of the Gray-Horse Troop", Hamlin Garland.
- The needle flew more swiftly when her fingers did not ache and the stitches blur indistinguishably with the fibre of the fabric. - "Flower of the Dusk", Myrtle Reed.
- There is a fine moment at the last shuffling of the cards, a moment when free will and fatalism are indistinguishably merged. - "The Boss of Little Arcady", Harry Leon Wilson.