existing in smaller amounts than what is needed

稀缺的, 匮乏的
without another thing or person existing in the same category

唯一的, 单独的
referring to a single item or entity

单一的, 唯一的
existing without any others of the same type

唯一的, 独自的
isolated and without any support

孤独的, 单独的
no more than one in number

单个的, 独自的
existing as the only one and without any other of the same kind

孤立的, 唯一的
having the least or smallest amount possible

最低的, 最小的
used to highlight how insignificant, minor, or small something is

仅仅的, 微不足道的
having or consisting of two aspects, parts, functions, etc.

双重的, 双面的
pertaining to or involving of two distinct elements or parts

二元的, 双重的
consisting of two equal or similar things or parts

双重的, 双倍的
consisting of three part, elements, people, etc.

三重的, 三层的
lacking in quantity, quality, or extent

微薄的, 贫乏的
minor or limited in extent, intensity, or amount

小的, 微小的
