1. (adverb)singly one by one; one at a time Synonyms: individually, one by one, on an individual basis, severally, separately Antonyms: multiply
2. (adverb)individually, separately, singly, severally, one by one, on an individual basis apart from others Synonyms: independently, by the piece, one after another, one by one, individually, respectively, separately, singly, severally, one at a time, on an individual basis Antonyms: multiply
Synonyms and Antonyms of singly 
