Following are all the ornamentless like words, in the list below.
UNDECORATED
100% like ornamentless
UNORNAMENTED
100% like ornamentless
UNORNATE
99.99% like ornamentless
UNADORNED
99.99% like ornamentless
NONDECORATED
99.98% like ornamentless
SIMPLE
99.98% like ornamentless
INORNATE
99.98% like ornamentless
PATTERNLESS
99.97% like ornamentless
UNORNAMENTAL
99.97% like ornamentless
MOTIFLESS
99.96% like ornamentless
BEADLESS
99.96% like ornamentless
UNADORNABLE
99.96% like ornamentless
BARE
99.95% like ornamentless
UNEMBROIDERED
99.95% like ornamentless
UNEMBELLISHED
99.94% like ornamentless
NONEMBELLISHED
99.94% like ornamentless
NONDECORATIVE
99.94% like ornamentless
UNCORNICED
99.93% like ornamentless
UNTINSELLED
99.93% like ornamentless
UNFLOUNCED
99.92% like ornamentless
STYLELESS
99.92% like ornamentless
UNDECORATIVE
99.92% like ornamentless
NONORNAMENTAL
99.91% like ornamentless
OUTLINELESS
99.91% like ornamentless
FRIEZELESS
99.9% like ornamentless
FEATURELESS
99.9% like ornamentless
IMAGELESS
99.9% like ornamentless
UNBEADED
99.89% like ornamentless
DESIGNLESS
99.89% like ornamentless
JEWELLESS
99.88% like ornamentless
GILTLESS
99.88% like ornamentless
UNDECKED
99.88% like ornamentless
TINSELLESS
99.87% like ornamentless
GAUDLESS
99.87% like ornamentless
UNDECORABLE
99.86% like ornamentless
RIBBONLESS
99.86% like ornamentless
SUBJECTLESS
99.86% like ornamentless
INSCRIPTIONLESS
99.85% like ornamentless
EMBLEMLESS
99.85% like ornamentless
GARLANDLESS
99.84% like ornamentless
GRIDLESS
99.84% like ornamentless
UNBERIBBONED
99.84% like ornamentless
UNDECORATABLE
99.83% like ornamentless
UNCOFFERED
99.83% like ornamentless
NOTATIONLESS
99.82% like ornamentless
DETAILLESS
99.82% like ornamentless
CLOTHLESS
99.82% like ornamentless
THEMELESS
99.81% like ornamentless
TEXTURELESS
99.81% like ornamentless
UNTRIMMED
99.8% like ornamentless
VARNISHLESS
99.8% like ornamentless
ADJECTIVELESS
99.8% like ornamentless
PLINTHLESS
99.79% like ornamentless
GARMENTLESS
99.79% like ornamentless
FIXTURELESS
99.78% like ornamentless
UNTASSELLED
99.78% like ornamentless
BUNTINGLESS
99.78% like ornamentless
UNGLOSSED
99.77% like ornamentless
SPARTAN
99.77% like ornamentless
UNFEATHERED
99.76% like ornamentless
UNFLOWERED
99.76% like ornamentless
UNCHEVRONED
99.76% like ornamentless
FRILLLESS
99.75% like ornamentless
COLUMNLESS
99.75% like ornamentless
NOTCHLESS
99.74% like ornamentless
CANVASLESS
99.74% like ornamentless
CONTRASTLESS
99.74% like ornamentless
WREATHLESS
99.73% like ornamentless
FIGURELESS
99.73% like ornamentless
PURE AND SIMPLE
99.72% like ornamentless
BLOSSOMLESS
99.72% like ornamentless
ACCESSORYLESS
99.72% like ornamentless
CHARACTERLESS
99.71% like ornamentless
FURNITURELESS
99.71% like ornamentless
NONOSTENTATIOUS
99.7% like ornamentless
ASPECTLESS
99.7% like ornamentless
POMPLESS
99.7% like ornamentless
UNFLOURISHED
99.69% like ornamentless
COSTUMELESS
99.69% like ornamentless
UNPRETTIED
99.68% like ornamentless
GEMLESS
99.68% like ornamentless
UNSHOWY
99.68% like ornamentless
DRAPELESS
99.67% like ornamentless
FORMLESS
99.67% like ornamentless
UNLINED
99.66% like ornamentless
SASHLESS
99.66% like ornamentless
ARMORLESS
99.66% like ornamentless
LACQUERLESS
99.65% like ornamentless
UNOSTENTATIOUS
99.65% like ornamentless
ARCHLESS
99.64% like ornamentless
BOASTLESS
99.64% like ornamentless
MELODYLESS
99.64% like ornamentless
LUSTERLESS
99.63% like ornamentless
BANNERLESS
99.63% like ornamentless
FABRICLESS
99.62% like ornamentless
HEATHERLESS
99.62% like ornamentless
INCENSELESS
99.62% like ornamentless
LAMPLESS
99.61% like ornamentless
UNBANNERED
99.61% like ornamentless
UNFOLIAGED
99.6% like ornamentless