noun which may take the genitive case particle 'no', na-adjective, noun
a little; a few; slight; insignificant; narrow (margin)
Formal or written word for a very small amount, number, or degree. Often used with nouns like 差 (difference), 金額 (amount of money), or 可能性 (possibility).
両者の意見には僅少な差しかない。
There is only a slight difference between their opinions.
The possibility of this plan succeeding is slim.
僅少 means a negligible or very small amount, the opposite of the huge amount or degree expressed by 多大.
narrow margin; slight difference
Compound of 僅 (kin, 'a little') and 少 (shō, 'few'). The reading is on'yomi. The exact historical derivation is uncertain, but the word has been used in formal writing since at least the Meiji period.