Following are all the penumbrous like words, in the list below.
SHADY
100% like penumbrous
UMBRACIOUS
100% like penumbrous
SHADEFUL
100% like penumbrous
UMBRAGEOUS
100% like penumbrous
CLOUDED
100% like penumbrous
UMBRATILE
100% like penumbrous
SEMISCENIC
100% like penumbrous
SEMIHUMID
100% like penumbrous
WOODED
100% like penumbrous
INFUSCATE
100% like penumbrous
SHADOWFILLED
100% like penumbrous
SEMICONSPICUOUS
100% like penumbrous
SHADOWY
100% like penumbrous
NEBULAR
100% like penumbrous
SEMILUCID
100% like penumbrous
SEMIOPALESCENT
100% like penumbrous
SEMIPERSPICUOUS
100% like penumbrous
ENSHADED
100% like penumbrous
UMBRIFEROUS
100% like penumbrous
RAINISH
100% like penumbrous
SEMIRETICULATED
100% like penumbrous
NUBILOUS
100% like penumbrous
SHADELIKE
100% like penumbrous
UMBROUS
100% like penumbrous
GRASSY
100% like penumbrous
SEMIPELLUCID
100% like penumbrous
SEMISTRATIFIED
100% like penumbrous
SEMIERECT
100% like penumbrous
HAZY
100% like penumbrous
SEMIDULL
100% like penumbrous
SUBGLUMACEOUS
100% like penumbrous
SEMIBALD
100% like penumbrous
BLOTCHY
100% like penumbrous
SUBFULGENT
100% like penumbrous
MUDDYISH
100% like penumbrous
MILDEWED
100% like penumbrous
FORESTED
100% like penumbrous
SOMBRE
100% like penumbrous
COUNTERSHADED
100% like penumbrous
SEMILUCENT
100% like penumbrous
SOMBROUS
100% like penumbrous
MISTYISH
100% like penumbrous
CLOUD-RIDDEN
100% like penumbrous
BROADISH
100% like penumbrous
SEMILOCULAR
100% like penumbrous
RUFULOUS
100% like penumbrous
SHADED
100% like penumbrous
THICKETY
100% like penumbrous
UMBRATILOUS
100% like penumbrous
SUBFUSCOUS
100% like penumbrous
SEMILUSTROUS
100% like penumbrous
LAMPSHADED
100% like penumbrous
FUMID
100% like penumbrous
GLOOMYISH
100% like penumbrous
FUSCESCENT
100% like penumbrous
UMBRATED
100% like penumbrous
SUBPUNCTATE
100% like penumbrous
LIGHTISH
100% like penumbrous
TURBID
100% like penumbrous
NARROWISH
100% like penumbrous
SEMIBLUNT
100% like penumbrous
NEMOROUS
100% like penumbrous
THICKETED
100% like penumbrous
MURKY
100% like penumbrous
UMBRINOUS
100% like penumbrous
VAGUISH
100% like penumbrous
SEMIRETICULATE
100% like penumbrous
FOLIAGEOUS
100% like penumbrous
SEMINATURAL
100% like penumbrous
SEMIMOIST
100% like penumbrous
MELLOWISH
100% like penumbrous
SUBPELLUCID
100% like penumbrous
SOMBERISH
100% like penumbrous
ADUMBRATED
100% like penumbrous
SEMIRENIFORM
100% like penumbrous
SEMITRANSPARENT
100% like penumbrous
BEGRASSED
100% like penumbrous
TENEBROUS
100% like penumbrous
SUBOPAQUE
100% like penumbrous
SEMIORBICULATE
100% like penumbrous
DEWY
100% like penumbrous
SHADOWISH
100% like penumbrous
SUBFUMOSE
100% like penumbrous
GREENISH
100% like penumbrous
SEMISENSUOUS
100% like penumbrous
PEPPERED
100% like penumbrous
GRAYISH
100% like penumbrous
UMBRATIC
100% like penumbrous
SEMIROTUND
100% like penumbrous
DUSKY
100% like penumbrous
TENEBRESCENT
100% like penumbrous
LUMINOUS
100% like penumbrous
BLEAKISH
100% like penumbrous
CLOUDISH
100% like penumbrous
DUNNY
100% like penumbrous
NEBULATED
100% like penumbrous
RAYLESS
100% like penumbrous
SEMICRESCENTIC
100% like penumbrous
SEMITUBEROUS
100% like penumbrous
UMBRELLAED
100% like penumbrous