considerable (adj.)

• able
• absolute
• active
• appreciable
• ascendant
• authoritarian
• authoritative
• authorized
• autocratic
• big
• billion
• bumper
• capable
• commanding
• competent
• comprehensive
• consequential
• controlling
• decent
• deep
• distinguished
• dominant
• double-barreled
• earthshaking
• effective
• efficacious
• eminent
• empowered
• estimable
• exhaustive
• extensive
• fair
• full
• good
• goodly
• governing
• grand
• grave
• great
• healthy
• heavy
• hefty
• high-powered
• illustrious
• imperative
• important
• influential
• intense
• irresistible
• large
• large-scale
• leading
• main
• major
• man-sized
• many
• material
• maximum
• meaningful
• mighty
• million
• momentous
• multifarious
• multiple
• multitudinous
• myriad
• notable
• noteworthy
• noticeable
• numerous
• official
• plenary
• potent
• powerful
• preeminent
• prestigious
• pretty
• prominent
• puissant
• ranking
• remarkable
• respectable
• ruling
• self-important
• senior
• sensible
• serious
• significant
• sizable
• sizeable
• smart
• strong
• substantial
• superior
• supreme
• tall
• thousand
• tidy
• total
• totalitarian
• weighty
• world-shaking
• worthy
• zillion