Definition for Umbra:

• ( pl. -ae). That part of the shadow of earth or moon within which sun is entirely hidden; dark central part of sun-spot( cf. PENUMBRA); ( Roman ant.) uninvited guest brought by a guest. Hence umbral a. [ Latin]

Synonyms for Umbra:

• n.

  •darkness (noun)
  • shadow.
  •dimness (noun)
  • shade.
  •shade (noun)
  • penumbra,
  • darkness,
  • apparition,
  • shadows,
  • shadiness,
  • phantom,
  • haunt,
  • shadow,
  • semidarkness,
  • specter,
  • adumbration,
  • spirit,
  • Phantasm,
  • blackness,
  • dusk,
  • revenant,
  • umbrage.
  •shadow (noun)
  • shade,
  • gloom.
  •soul (noun)
  • ghost.
  •spirit (noun)
  • spook,
  • soul,
  • Eidolon.

• Other synonyms:

  •
  • soul,
  • penumbra.
  •
  • shadow.
  •
  • umbrage.
  •
  • shade.
  •Other relevant words:
  • nil,
  • honeycomb,
  • twilight,
  • naught,
  • nullity,
  • cipher,
  • smallness,
  • semidarkness,
  • penumbra,
  • umber,
  • notables,
  • magnate,
  • skiagram,
  • celebrity,
  • star,
  • darkness,
  • spook,
  • blackness,
  • shadow,
  • no such thing,
  • Notabilities,
  • shade,
  • candlelight,
  • night,
  • black,
  • plug,
  • no one,
  • spirit,
  • murk,
  • silhouette,
  • skiagraph,
  • apparition,
  • jade,
  • immortality,
  • wreck,
  • nonentity,
  • nothing,
  • Umbrageousness,
  • superstar,
  • umbrage,
  • zero,
  • moonshine,
  • skate,
  • stuff and nonsense,
  • gloaming,
  • tacky,
  • shadiness,
  • man of straw,
  • adumbration,
  • shadows,
  • Rackabones,
  • haunt,
  • henna,
  • ghost,
  • revenant,
  • memory,
  • Phantasm,
  • phantom,
  • Tackey,
  • soul,
  • gloom,
  • Eidolon,
  • big gun,
  • bigwig,
  • nobody,
  • specter,
  • dusk.

Antonyms for Umbra:

• n.

  • shade
    light, brightness.
  • spirit
    reality, being.
  • Other antonyms:
    brightness, luminousness, sunlight, glare, lucidity, glow, radiancy, lightness, moonlight, effulgence, shine, luminance, Lucidness, luminosity, day, blaze, illumination, light, starlight, brilliance, incandescence, daylight, sunshine, radiance, luminescence.