Following are all the imperial-royal like words, in the list below.
IMPERIAL
100% like imperial-royal
IMPERIAL JAPANESE
100% like imperial-royal
AUSTRO-HUNGARIAN
99.99% like imperial-royal
IMPERATORIAL
99.99% like imperial-royal
HABSBURGIAN
99.98% like imperial-royal
IMPERIALIST
99.98% like imperial-royal
HABSBURG
99.98% like imperial-royal
HUNGARIAN
99.97% like imperial-royal
KAISERLICH
99.97% like imperial-royal
IMPERIALISTIC
99.96% like imperial-royal
ROYAL
99.96% like imperial-royal
AUSTRIAN
99.96% like imperial-royal
MONARCHICAL
99.95% like imperial-royal
CORONATIONAL
99.95% like imperial-royal
ALBERTINIAN
99.94% like imperial-royal
MONARCHIC
99.94% like imperial-royal
PRINCELY
99.94% like imperial-royal
ARCHDUCAL
99.93% like imperial-royal
ROYALISTIC
99.93% like imperial-royal
REGAL
99.92% like imperial-royal
PREIMPERIAL
99.92% like imperial-royal
SOVEREIGN
99.92% like imperial-royal
SUBIMPERIALIST
99.91% like imperial-royal
ROIAL
99.91% like imperial-royal
REGIUS
99.9% like imperial-royal
INTERAULIC
99.9% like imperial-royal
VIENNESE
99.9% like imperial-royal
COURTLY
99.89% like imperial-royal
REGNAL
99.89% like imperial-royal
HEGEMONIC
99.88% like imperial-royal
TSARISTIC
99.88% like imperial-royal
MONARCHISTIC
99.88% like imperial-royal
OTTOMANIC
99.87% like imperial-royal
ARISTOCRATICAL
99.87% like imperial-royal
ELIZABETHAN
99.86% like imperial-royal
REGINAL
99.86% like imperial-royal
HUNGARIST
99.86% like imperial-royal
VICEREGAL
99.85% like imperial-royal
CENTRAL EUROPEAN
99.85% like imperial-royal
PALATINE
99.84% like imperial-royal
AULIC
99.84% like imperial-royal
EXTRAIMPERIAL
99.84% like imperial-royal
CATHERINIAN
99.83% like imperial-royal
KINGLY
99.83% like imperial-royal
CENTRALIST
99.82% like imperial-royal
CENTRICAL
99.82% like imperial-royal
CENTRAL
99.82% like imperial-royal
OTTOMAN
99.81% like imperial-royal
CURIAL
99.81% like imperial-royal
WILHELMINE
99.8% like imperial-royal
JAGIELLONIAN
99.8% like imperial-royal
STYRIAN
99.8% like imperial-royal
CZAROCRATIC
99.79% like imperial-royal
REGENTAL
99.79% like imperial-royal
HEGEMONISTIC
99.78% like imperial-royal
TSARIC
99.78% like imperial-royal
GHAZNAVID
99.78% like imperial-royal
PALATIAL
99.77% like imperial-royal
NAZI
99.77% like imperial-royal
SASSANIAN
99.76% like imperial-royal
AUSTROFASCIST
99.76% like imperial-royal
MAURYAN
99.76% like imperial-royal
ECO-IMPERIALIST
99.75% like imperial-royal
CROWN
99.75% like imperial-royal
FEUDAL
99.74% like imperial-royal
RUDOLPHINE
99.74% like imperial-royal
DYNASTIC
99.74% like imperial-royal
TYROLESE
99.73% like imperial-royal
NEOIMPERIALISTIC
99.73% like imperial-royal
ARISTOCRATIC
99.72% like imperial-royal
REGALIAN
99.72% like imperial-royal
POSTIMPERIAL
99.72% like imperial-royal
BAVARIAN
99.71% like imperial-royal
FEUDALISTIC
99.71% like imperial-royal
HORTHYAN
99.7% like imperial-royal
GREAT RUSSIAN
99.7% like imperial-royal
TSARISH
99.7% like imperial-royal
CORONARY
99.69% like imperial-royal
SOVIET
99.69% like imperial-royal
TRIALIST
99.68% like imperial-royal
FEUDATORY
99.68% like imperial-royal
WEIMARIAN
99.68% like imperial-royal
IMPERATIVAL
99.67% like imperial-royal
HERZEG-BOSNIAN
99.67% like imperial-royal
ANGLO-INDIAN
99.66% like imperial-royal
PRESIDIAL
99.66% like imperial-royal
HISTORICOPOLITICAL
99.66% like imperial-royal
POLITICOHISTORICAL
99.65% like imperial-royal
MONARCHIANISTIC
99.65% like imperial-royal
NAPOLEONISTIC
99.64% like imperial-royal
IRAQI
99.64% like imperial-royal
BRITISH
99.64% like imperial-royal
EUROCOLONIAL
99.63% like imperial-royal
DYNASTICAL
99.63% like imperial-royal
CZARINIAN
99.62% like imperial-royal
FRANCO-PRUSSIAN
99.62% like imperial-royal
ROMAEAN
99.62% like imperial-royal
PRESIDENTIAL
99.61% like imperial-royal
BARONIAL
99.61% like imperial-royal
BUDAPESTIAN
99.6% like imperial-royal