Following are all the so-so like words, in the list below.
INDIFFERENT
100% like so-so
TOLERABLE
99.91% like so-so
TOLERABLY
99.9% like so-so
PASSABLE
99.9% like so-so
ACCEPTABLY
99.89% like so-so
ORDINARY
99.62% like so-so
MODERATE
74.98% like so-so
PLEA
74.87% like so-so
MEDIUM
74.6% like so-so
AVERAGE
74.58% like so-so
WAY
74.51% like so-so
MEANS
74.39% like so-so
COMME CI COMME çA
50.03% like so-so
NONTERRIBLE
50.03% like so-so
IN-BETWEEN
50.03% like so-so
NONBAD
50.03% like so-so
NEUTRAL
50.03% like so-so
BETWIXT AND BETWEEN
50.03% like so-so
SIDEWAYS
50.03% like so-so
NONGREAT
50.03% like so-so
SEMIDIRECT
50.03% like so-so
UNGOOD
50.03% like so-so
SEMI-INFORMAL
50.03% like so-so
MILD
50.03% like so-so
MIDLENGTH
50.03% like so-so
UNWRONG
50.03% like so-so
PSEUDOFORMAL
50.03% like so-so
SIMPLE
50.03% like so-so
UNTERRIBLE
50.03% like so-so
NON-NOTABLE
50.03% like so-so
HALFWAY DECENT
50.03% like so-so
SEMIRECENT
50.03% like so-so
UNDISTINGUISHED
50.03% like so-so
TEPID
50.03% like so-so
UNLOUSY
50.03% like so-so
SEMIPERMANENT
50.03% like so-so
UNOBJECTIONABLE
50.03% like so-so
NEUTER
50.03% like so-so
COOL
50.03% like so-so
NONWORTHWHILE
50.03% like so-so
NONEXCEPTIONAL
50.03% like so-so
NOT SO HOT
50.03% like so-so
NEGATIVE
50.03% like so-so
UNOPINIONATED
50.03% like so-so
UNENTERTAINING
50.03% like so-so
NONSATISFYING
50.03% like so-so
INNOCUOUS
50.03% like so-so
UNDISAGREEABLE
50.03% like so-so
UNGREAT
50.03% like so-so
UNEXCELLENT
50.03% like so-so
NEITHER HERE NOR THERE
50.03% like so-so
UNSERIOUS
50.03% like so-so
SEMICOMFORTABLE
50.03% like so-so
UNAMAZING
50.03% like so-so
UNOBJECTIONAL
50.03% like so-so
NEITHER FISH NOR FOWL
50.03% like so-so
SEMIBEARABLE
50.03% like so-so
NONEVENTFUL
50.03% like so-so
UNWEIRD
50.03% like so-so
NONDRAMATIC
50.03% like so-so
UNENTHRALLING
50.03% like so-so
NONDISPARAGING
50.03% like so-so
NONFOUL
50.03% like so-so
NONMEANINGFUL
50.03% like so-so
UNHORRIBLE
50.03% like so-so
NONNOTABLE
50.03% like so-so
UNFINE
50.03% like so-so
OPEN
50.03% like so-so
UNMEANINGFUL
50.03% like so-so
AMORAL
50.03% like so-so
NONCOMMENDABLE
50.03% like so-so
NONDESCRIPT
50.03% like so-so
NONREMARKABLE
50.03% like so-so
HARMLESS
50.03% like so-so
VALUE-NEUTRAL
50.03% like so-so
SEMISATISFIED
50.03% like so-so
UNPASSED
50.03% like so-so
UNEXTRAORDINARY
50.03% like so-so
NONINTERESTING
50.03% like so-so
SEMIDEFINITE
50.03% like so-so
NONTROUBLESOME
50.03% like so-so
INFORMAL
50.03% like so-so
UNCERTAIN
50.03% like so-so
UNSPECIFIED
50.03% like so-so
SEMI-SINGLE
50.03% like so-so
NON-NEGATIVE
50.03% like so-so
NONSERIOUS
50.03% like so-so
NONFAVORABLE
50.03% like so-so
NONDETRIMENTAL
50.03% like so-so
NONDESIROUS
50.03% like so-so
NONPOSITIVE
50.03% like so-so
UNSHITTY
50.03% like so-so
UNIRRITABLE
50.03% like so-so
NONSPECIFIED
50.03% like so-so
BENIGN
50.03% like so-so
NOTHINGBURGER
50.03% like so-so
CASUAL
50.03% like so-so
NONPRESTIGE
50.03% like so-so
UNEVIL
50.03% like so-so
UNFATEFUL
50.03% like so-so