Following are all the undulation like words, in the list below.
WAVE
100% like undulation
GEOIDAL
66.4% like undulation
GEOID
66.38% like undulation
UNDULATING
33.43% like undulation
UNDULATED
33.43% like undulation
UNDULATORY
33.43% like undulation
UNDULATE
33.43% like undulation
UNDULANT
33.43% like undulation
WAVELIKE
33.43% like undulation
UNDULATES
33.43% like undulation
IRREGULARITY
33.43% like undulation
RIPPLING
33.43% like undulation
CURVATURE
33.43% like undulation
RHYTHMICAL
33.43% like undulation
OSCILLATION
33.43% like undulation
PULSATORY
33.43% like undulation
TOPOGRAPHY
33.43% like undulation
RHYTHMIC
33.43% like undulation
SINUOUS
33.43% like undulation
DIMPLING
33.43% like undulation
AMPLITUDE
33.43% like undulation
STRIATION
33.43% like undulation
ROUGHNESS
33.43% like undulation
SINUOSITY
33.43% like undulation
CORKSCREWING
33.43% like undulation
VARIATION
33.43% like undulation
RUGOSITY
33.43% like undulation
WAVY
33.43% like undulation
WAVINESS
33.43% like undulation
FLUCTUATION
33.43% like undulation
FLATNESS
33.43% like undulation
PERTURBATION
33.43% like undulation
CURVING
33.43% like undulation
SCALIC
33.43% like undulation
BUMPINESS
33.43% like undulation
ZIGZAG
33.43% like undulation
INTERLACEMENT
33.43% like undulation
PULSATION
33.43% like undulation
OSCILLATIONS
33.43% like undulation
ACCELERATORY
33.43% like undulation
STEEPNESS
33.43% like undulation
SLOPE
33.43% like undulation
TOPOGRAPHIC
33.43% like undulation
HARMONIC
33.43% like undulation
CURVATURES
33.43% like undulation
ALTERNATION
33.43% like undulation
RIPPLES
33.43% like undulation
TENUITY
33.43% like undulation
SNAKY
33.43% like undulation
BENDINGS
33.43% like undulation
EDDYING
33.43% like undulation
GYRAL
33.43% like undulation
SINUSOIDAL
33.43% like undulation
MODULATIONS
33.43% like undulation
MODULATION
33.43% like undulation
VIBRATION
33.43% like undulation
CONTOUR
33.43% like undulation
BEDFORM
33.43% like undulation
DEFORMATION
33.43% like undulation
SLOPING
33.43% like undulation
LINEATION
33.43% like undulation
PEBBLING
33.43% like undulation
JAGGEDNESS
33.43% like undulation
CURVES
33.43% like undulation
TRANSVERSE
33.43% like undulation
RHYTHM
33.43% like undulation
VORTICAL
33.43% like undulation
CORRUGATION
33.43% like undulation
SANDINESS
33.43% like undulation
SALTATION
33.43% like undulation
METACHRONAL
33.43% like undulation
ACCELERATIVE
33.43% like undulation
SERPENTINE
33.43% like undulation
TOPOGRAPHICAL
33.43% like undulation
CONCAVITY
33.43% like undulation
ROUNDNESS
33.43% like undulation
ASYMMETRY
33.43% like undulation
ROUGHENING
33.43% like undulation
TENSITY
33.43% like undulation
HUMPS
33.43% like undulation
RIPPLE
33.43% like undulation
WAVES
33.43% like undulation
WATERLIKE
33.43% like undulation
OSCILLATORY
33.43% like undulation
UNVARYING
33.43% like undulation
LATERAL
33.43% like undulation
UNEVENNESS
33.43% like undulation
GRAVITATIVE
33.43% like undulation
ANGULARITY
33.43% like undulation
CURVE
33.43% like undulation
EXPANSE
33.43% like undulation
GEOMETRICAL
33.43% like undulation
NUTATION
33.43% like undulation
VERMICULAR
33.43% like undulation
LOBING
33.43% like undulation
PROTRUSION
33.43% like undulation
MOVEMENT
33.43% like undulation
CONVEXITIES
33.43% like undulation
FLAMELIKE
33.43% like undulation
CORRUGATIONS
33.43% like undulation
