も一ひとつMeanings1expressionanother; one moreColloquial form of もう一つ, used in casual speech to request or mention an additional item.See also: もう一つも一ひとつください。Give me one more, please.も一ひとつ質しつ問もんがあるんだけど。2expression, adverbnot quite; not very; lackingUsed with a negative verb to mean 'not quite' or 'not very', implying something is lacking or insufficient. Often appears as も一つ~ない.See also: もう一つこの映えい画がはも一ひとつ面おも白しろく