Synonyms for Inferior:

adj.

bad (adjective)
displeasing, bad, unpleasant, poor, black, baneful, inadequate, unsatisfactory, inadvisable, ill-suited, irremediable, wretched, vile, invalid, defective, unsound, wrong, faulty, detrimental, arrant, unfavorable.
cheap (adjective)
cheesy.
deficient (adjective)
insufficient.
inferior (adjective)
lesser, subservient, under, subject, second, subordinate, below, dependent, underling, junior.
less in rank, importance (adjective)
lesser, second, secondary, less, lower, subordinate, bottom, menial, minor, under, junior.
lousy (adjective)
crummy.
low (adjective)
lower.
servile (adjective)
docile, devoted, dutiful, obedient, browbeaten, complaisant, downtrodden, willing, subordinate, feudal, curtsying, menial, Genuflecting, deferential, yielding, attending, humble, submissive, groveling, servile, Subjected, biddable, kowtowing, acquiescent, slavish, subservient.
trashy (adjective)
low quality.
unacceptable (adjective)
insufficient, inadequate, unacceptable, intolerable, unsuitable, untenable, deficient, inadmissible, unsatisfactory, inappropriate.
unimportant (adjective)
small.

n.

unsure of yourself, uncertain, shy, ill at ease, over, tentative, retiring, minor league, inhibited, lost, insecure, smalltime, timid. level, stratum, rank, position, ranking, status, caste, echelon, tier, grade. person of lesser rank, importance (noun)
subject, subaltern, second banana, underling.
subordinate (noun)
underling.

Other synonyms:

low quality, low, smalltime, undistinguished. shabby. petty
petty.
second-class
second class.
unsatisfactory
disappointing.
worse
impoverished, worse, pale, degenerate, worst, retrogressive.

Usage examples for inferior

  1. Wood of inferior cut. – Seasoning of Wood by Joseph B. Wagner
  2. For the words 'head' and 'heel' point out only what is superior and what is inferior – Christology of the Old Testament: And a Commentary on the Messianic Predictions, v. 1 by Ernst Wilhelm Hengstenberg