so small as to be invisible or indistinct without the use of the microscope

microscopic organisms. Compare macroscopic

very small; tiny.

of, pertaining to, or involving a microscope

microscopic investigation.

very detailed; meticulous

a microscopic view of society.

suggestive of the precise use of the microscope; minute

microscopic exactness.

adjective

big , huge , large , macroscopic

adjective

atomic , diminutive , imperceptible , infinitesimal , invisible , little , minuscule , minute , negligible , teeny * , wee * , small , tiny