between two stools
indistinguishable
undistinguishable
neither fish nor fowl
indiscriminate
indiscernible
undistinguished
loose
nondifferentiated
ill-suited
incongruous
bicategorized
categorylessness
background
unenterprising
blank
gross
misdifferentiate
nontiered
frontless
word-splitting
caught between two stools
hairsplitting
nichelessness
bad
unbecoming
indiscernibility
undistinguishing
unsimplifiable
boundarylessness
ranklessness
wonky
dichotomization
ill-matched
sweeping
dichotomisation
unfitted
noncategorial
wholesale
nondifferentation
indistinction
inelegant
bracket
unassimilability
amorphous
indiscriminable
featureless
squally
subcategory
nondescript