(ordered by popularity)
good
same
main
only
very
real
second
sufficient
human
more
little
simple
important
major
practical
apparent
primary
much
particular
obvious
pure
chief
principal
special
third
possible
valid
right
further
better
additional
unknown
true
basic
compelling
less
sole
fundamental
sound
logical
theoretical
ample
strange
legitimate
adequate
enough
excellent
underlying
probable
priori
universal
likely
slightest
plausible
prime
unexplained
ultimate
least
deeper
speculative
ostensible
instrumental
inexplicable
plain
abundant
wrong
satisfactory
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