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.]