SIN'GULAR, a. L. singularis,from singulus, single.

1. Single not complex or compound. That idea which represents one determinate thing, is called a singular idea, whether simple, complex or compound.
2. In grammar, expressing one person or thing as the singular number. The singular number stands opposed to dual and plural.
3. Particular existing by itself unexampled as a singular phenomenon. Your case is hard, but not singular.
4. Remarkable eminent unusual rare as a man of singular gravity, or singular attainments.

SIN'GULAR, n. A particular instance. Unusual.