Synonyms of second-fiddle

1 Syllable
peon, less
2 Syllables
lower, nether, bottom, lesser, busher, lowers, junior, menial, second, small-fry, third-string, minor, under, minus, smaller
3 Syllables
underneath, subjacent, inferior, second-string, bottom-rung, inferiors
4 Syllables
entry-level, secondary, subsidiary
5 Syllables
subordinate, subalternate, second-banana
6 Syllables
underaverage