Following are all the lacuna like words, in the list below.
BLANK
100% like lacuna
COFFER
99.96% like lacuna
CAISSON
99.85% like lacuna
GAP
66.87% like lacuna
FLAW
66.85% like lacuna
HOLE
66.78% like lacuna
LAGOON
66.64% like lacuna
LOOPHOLE
66.55% like lacuna
WEAKNESS
66.51% like lacuna
LIMITATION
66.5% like lacuna
FAILING
66.46% like lacuna
LAPSE
66.46% like lacuna
PROBLEM
66.44% like lacuna
HIATUS
66.44% like lacuna
DEFECT
66.36% like lacuna
SHORTCOMING
66.33% like lacuna
DEFICIENCY
66.33% like lacuna
DEFICIT
66.33% like lacuna
LACK
66.29% like lacuna
EMPTY
66.29% like lacuna
EMPTINESS
66.27% like lacuna
VACUUM
66.25% like lacuna
VOID
66.24% like lacuna
OMISSION
66.23% like lacuna
SHORTFALL
65.89% like lacuna
LEGIS
33.66% like lacuna
GAPS
33.66% like lacuna
LACUNE
33.66% like lacuna
DISJUNCTURE
33.66% like lacuna
INTERSTICE
33.66% like lacuna
UNFILLABLE
33.66% like lacuna
DISCREPANCY
33.66% like lacuna
LACUNARY
33.66% like lacuna
PAUCITY
33.66% like lacuna
GAPING
33.66% like lacuna
VACUITY
33.66% like lacuna
AMBIGUITY
33.66% like lacuna
INCONGRUITY
33.66% like lacuna
DISJUNCTURES
33.66% like lacuna
VAGUENESS
33.66% like lacuna
INTERSTICES
33.66% like lacuna
DISCONTINUITY
33.66% like lacuna
CHASM
33.66% like lacuna
IMPEDIMENT
33.66% like lacuna
ANOMALY
33.66% like lacuna
EMBRASURE
33.65% like lacuna
APORETIC
33.65% like lacuna
VACANCY
33.65% like lacuna
IMBROGLIO
33.65% like lacuna
DISPROPORTION
33.65% like lacuna
LACUNES
33.65% like lacuna
BELATEDNESS
33.65% like lacuna
NEBULOUSNESS
33.65% like lacuna
FISSURE
33.65% like lacuna
AMBIGUITIES
33.65% like lacuna
PECULIARITY
33.65% like lacuna
CAESURA
33.65% like lacuna
DISQUIET
33.65% like lacuna
UNFILLED
33.65% like lacuna
IRREMEDIABLE
33.65% like lacuna
QUANDARY
33.65% like lacuna
DEFICIENCIES
33.65% like lacuna
CREVICE
33.65% like lacuna
INCOMPLETENESS
33.65% like lacuna
APORIAS
33.65% like lacuna
INCONGRUITIES
33.65% like lacuna
VACUITIES
33.65% like lacuna
INTERREGNUM
33.65% like lacuna
INSUFFICIENCY
33.65% like lacuna
IRREGULARITY
33.65% like lacuna
APORIA
33.65% like lacuna
HISTORIOGRAPHIC
33.65% like lacuna
HOLLOWNESS
33.65% like lacuna
MISCONSTRUAL
33.65% like lacuna
SIGNIFICANCY
33.65% like lacuna
ABSENCE
33.65% like lacuna
DISCREPANCIES
33.65% like lacuna
DISPARITY
33.65% like lacuna
DEARTH
33.65% like lacuna
MIASMA
33.65% like lacuna
DISCREPENCY
33.65% like lacuna
DIRTH
33.65% like lacuna
IMBALANCE
33.65% like lacuna
MISMATCH
33.65% like lacuna
HISTORIOGRAPHICAL
33.65% like lacuna
AMBIVALENCE
33.65% like lacuna
HEMISTICH
33.65% like lacuna
INTERSLICE
33.65% like lacuna
ORTHOGRAPHICAL
33.65% like lacuna
ERRONEOUSNESS
33.65% like lacuna
MISCONSTRUCTION
33.65% like lacuna
DISQUISITION
33.65% like lacuna
INADEQUACIES
33.65% like lacuna
PARADIGMATIC
33.65% like lacuna
SUPERCESSION
33.65% like lacuna
MALFORMATION
33.65% like lacuna
FALCIFORM
33.65% like lacuna
FRAGMENTA
33.65% like lacuna
DIASTEMA
33.65% like lacuna
INCOHERENCE
33.65% like lacuna