Following are all the second-class like words, in the list below.
INFERIOR
100% like second-class
MINOR
66.7% like second-class
SECONDARY
66.57% like second-class
SECOND
66.57% like second-class
SUB-PRIME
66.47% like second-class
2ND
66.39% like second-class
TWO-TIER
66.3% like second-class
SECOND-ORDER
66.19% like second-class
SEMI-PRECIOUS
65.93% like second-class
SECOND-RATE
65.87% like second-class
TWO-SPEED
33.39% like second-class
MINUS
33.39% like second-class
MIDCLASS
33.39% like second-class
MIDRANKING
33.39% like second-class
SUBORDINATE
33.39% like second-class
JUNIOR
33.39% like second-class
PETIT
33.39% like second-class
LOWER-MEDIUM
33.39% like second-class
SUBALTERN
33.39% like second-class
DOWNLEVEL
33.39% like second-class
SUBPRIME
33.39% like second-class
THIRD BEST
33.39% like second-class
SUBPRIMARY
33.39% like second-class
SUBPAR
33.39% like second-class
SECOND-DIVISION
33.39% like second-class
SECOND-DEGREE
33.39% like second-class
LOW-LEVEL
33.39% like second-class
SUBSENIOR
33.39% like second-class
PETTY
33.39% like second-class
SUBMINIMAL
33.39% like second-class
SUBULTIMATE
33.39% like second-class
MIDTABLE
33.39% like second-class
MINOR-LEAGUE
33.39% like second-class
SUBCOLLEGIATE
33.39% like second-class
LAST
33.39% like second-class
MID-SIZE
33.39% like second-class
SUBALTERNATE
33.39% like second-class
SUBPREMIUM
33.39% like second-class
LESSER
33.39% like second-class
SUBJUNIOR
33.39% like second-class
SECOND-STRING
33.39% like second-class
SUBOFFICIAL
33.39% like second-class
SUBCRITICAL
33.39% like second-class
SEMISTRICT
33.39% like second-class
TERTIARY
33.39% like second-class
SUBTHRESHOLD
33.39% like second-class
TWOTH
33.39% like second-class
SUBLEADING
33.39% like second-class
SUBLITERARY
33.39% like second-class
SEMIACID
33.39% like second-class
SECOND-LINE
33.39% like second-class
SUBMINIMUM
33.39% like second-class
SUBESSIVE
33.39% like second-class
SUBJECT
33.39% like second-class
SEMICRITICAL
33.39% like second-class
J.G.
33.39% like second-class
TRIBUTARY
33.39% like second-class
SECONDBORN
33.39% like second-class
SUBSIDIARY
33.39% like second-class
LATTER
33.39% like second-class
MIDTIER
33.39% like second-class
SUPERORDINATE
33.39% like second-class
TYPICAL
33.39% like second-class
NEXT-LEVEL
33.39% like second-class
MINOR KEY
33.39% like second-class
SUBGENERIC
33.39% like second-class
SUBLEVEL
33.39% like second-class
DOWNLISTED
33.39% like second-class
ANCILLARY
33.39% like second-class
SUBUNITARY
33.39% like second-class
SUBORDINAL
33.39% like second-class
SUBUNIVERSAL
33.39% like second-class
SUPERLIMINARY
33.39% like second-class
QUASIEQUIVALENT
33.39% like second-class
SUBFELONY
33.39% like second-class
SOPHOMORE
33.39% like second-class
SUBDEGREE
33.39% like second-class
SUBMINISTERIAL
33.39% like second-class
OTHER
33.39% like second-class
INTERVENIENT
33.39% like second-class
VICE
33.39% like second-class
UNDERTHRESHOLD
33.39% like second-class
SUBUNEQUAL
33.39% like second-class
SUBMAJOR
33.39% like second-class
FIRST-ORDER
33.39% like second-class
SEMIMAJOR
33.39% like second-class
SUBBOTTOM
33.39% like second-class
SEMIMODAL
33.39% like second-class
UPPER
33.39% like second-class
SUBSENTENTIAL
33.39% like second-class
SUBEXTREMAL
33.39% like second-class
SUBREGIMENTAL
33.39% like second-class
ASSOCIATE
33.39% like second-class
SUBJACENT
33.39% like second-class
SUBEXTENSIVE
33.39% like second-class
SUBOPTIMUM
33.39% like second-class
SUPERSTANDARD
33.39% like second-class
SUBCONVERSATIONAL
33.39% like second-class
SUBORDINATIVE
33.39% like second-class
SINGLE-FIGURE
33.39% like second-class