Following are all the flatwater like words, in the list below.
RUNNABLE
100% like flatwater
KAYAKABLE
100% like flatwater
FRESHWATER
100% like flatwater
BLUEWATER
100% like flatwater
BOATABLE
100% like flatwater
FAIR
100% like flatwater
RIVERGOING
100% like flatwater
PLAIN SAILING
100% like flatwater
BOATSIDE
100% like flatwater
DEAD CALM
100% like flatwater
KEELLESS
100% like flatwater
SHALLOW-WAISTED
100% like flatwater
LOCKSIDE
100% like flatwater
FEATHERED
100% like flatwater
WATERBORNE
100% like flatwater
ROWABLE
100% like flatwater
BOATTAILED
100% like flatwater
FLOATING
100% like flatwater
WATERFRONTED
100% like flatwater
FLYING
100% like flatwater
BAREBOAT
100% like flatwater
AQUADYNAMIC
100% like flatwater
BOAT-IN
100% like flatwater
BISWEPTUAL
100% like flatwater
NAVICULAR
100% like flatwater
SHOREFAST
100% like flatwater
LAPSTRAKE
100% like flatwater
CARTOPPABLE
100% like flatwater
SLIGHT
100% like flatwater
TURTLED
100% like flatwater
CRUISY
100% like flatwater
NAUTIFORM
100% like flatwater
TOPWATER
100% like flatwater
SHOAL
100% like flatwater
NAVIGABLE
100% like flatwater
BOATY
100% like flatwater
CARVEL-BUILT
100% like flatwater
WATERSIDE
100% like flatwater
SHORTSEA
100% like flatwater
ASTRAND
100% like flatwater
SAILLESS
100% like flatwater
OVERWATER
100% like flatwater
CANALSIDE
100% like flatwater
SEAKINDLY
100% like flatwater
STEAMBOATS
100% like flatwater
EN FLUTE
100% like flatwater
OFFSIDE
100% like flatwater
WATERLOGGED
100% like flatwater
UNIMMERGIBLE
100% like flatwater
SAILING
100% like flatwater
DOUBLE-BANKED
100% like flatwater
DRAFTED
100% like flatwater
SHORELINED
100% like flatwater
EMBAYED
100% like flatwater
WEEDLESS
100% like flatwater
SAILWORTHY
100% like flatwater
LANDFAST
100% like flatwater
BLUFF-BOWED
100% like flatwater
WILD
100% like flatwater
FLEET
100% like flatwater
SAILED
100% like flatwater
HAPPY AS A CLAM AT HIGH WATER
100% like flatwater
ANCHIHALINE
100% like flatwater
CAT-RIGGED
100% like flatwater
SAILY
100% like flatwater
WEATHER
100% like flatwater
ABOVE-WATER
100% like flatwater
NAIANT
100% like flatwater
FLOTANT
100% like flatwater
MONOHULLED
100% like flatwater
DOWNRIVER
100% like flatwater
LIVEABOARD
100% like flatwater
YACHTY
100% like flatwater
OVER-CANVASSED
100% like flatwater
WALL-SIDED
100% like flatwater
SPINNAKERED
100% like flatwater
PROWLIKE
100% like flatwater
UNDERWATER
100% like flatwater
WATERJACKETED
100% like flatwater
HIGH
100% like flatwater
DEAD IN THE WATER
100% like flatwater
LARGE
100% like flatwater
UNNAVIGABLE
100% like flatwater
JETTIED
100% like flatwater
SHORTFIN
100% like flatwater
CALVER
100% like flatwater
ASAIL
100% like flatwater
WEATHERLY
100% like flatwater
SINKY
100% like flatwater
NAVIFORM
100% like flatwater
ANCHORABLE
100% like flatwater
HULLED
100% like flatwater
LIGHT
100% like flatwater
JERK-WATER
100% like flatwater
YACHTBOARD
100% like flatwater
MARINE
100% like flatwater
FLANK
100% like flatwater
DEEP-WATER
100% like flatwater
OCEANGOING
100% like flatwater
NATANT
100% like flatwater