dim, dark, obscure; dusky, shadowy, only faintly/dimly seen; dingy; gloomy; not/barely visible, hidden from sight; imperceptible; muted/muffled, inaudible; little known, undistinguished/insignificant/humble/obscure (person); secret; not open; vague/uncertain/dim/faint, poorly known; unclear; incomprehensible; darken, obscure; conceal; make indistinct; cause to be forgotten;