Definition for First class:

• Of the highest excellence, rank, or quality.

Synonyms for First class:

• adj.

  •excellent (adjective)
  • sterling.

• n.

  •first class (noun)
  • fantabulous,
  • first-class mail,
  • excellent,
  • priority mail,
  • 1st-class mail,
  • 1st class,
  • superior.

• Other synonyms:

  •
  • prime.
  •Other relevant words:
  • pucka,
  • pukka,
  • outstanding,
  • rare,
  • perfectly done,
  • tops,
  • superlative.

Antonyms for First class:

• adj.

  • best
    least, poorest, secondary, minor, fewest, low-class, incorrect, extra, low, worst, last, not right, unimportant.
  • capital
    second-rate, nonessential.
  • choice
    common, unrefined, ordinary, sad.
  • crack
    unskilled, lower, inept.
  • dandy
    ignorant, unacceptable, stupid, not good, insignificant.
  • deluxe
    destitute.
  • excellent
    imperfect, unable, unnoteworthy, Indistinguished, second-class, unworthy, unexceptional, detestable, ugly, unknown, regular, failing, repulsive, crude.
  • exceptional
    conventional, inconsiderable, expected, commonplace, mediocre, normal, usual, unremarkable, ok, unprodigious, general.
  • fabulous
    credible, plausible, believable, plain, simple, unamazing.
  • fantastic
    little, tiny, customary, small, unpleasant, Familiar.
  • fine
    homely, rainy, unfashionable, dark, unattractive, hateful, humble, shabby, offensive, unpopular, cloudy, disagreeable, stormy, rough, horrifying, unsophisticated, uncouth, awkward, dull, drab, cheap, coarse, thick, undiscriminating.
  • first
    final, inessential, auxiliary, submissive, unnecessary, trivial, subordinate.
  • first-class/first-rate
    bad, poor, inferior, lesser.
  • good
    noxious, tainted, unvirtuous, unreal, worthless, inadequate, sinful, immoral, evil, forged, Misbehaving, vile, wicked, incompetent, unsatisfactory, vicious, rotten, unreliable, fake, inconsequential, unhelpful, unsuitable, mean.
  • grand
    pitiful, contemptible, undignified, modest, unimpressive, unimposing, paltry, ignoble.
  • great
    infamous, miniature, powerless, uncelebrated, menial, minute, short, flawed, few, weak.
  • important
    impotent, incapable, ineffective, unsubstantial, inappreciable.
  • lavish
    moderate, barren, insufficient, thrifty, wanting, spare, depressed, scanty, saving, austere, lacking, economical, scarce, sparse, stingy, reasonable.
  • mint
    ancient, used, damaged, old.
  • primary/prime
    supplemental, latest.
  • select
    open.
  • sensational
    unexciting, run-of-the-mill, boring.
  • sharp
    aboveboard, mild, nice, unintelligent, indistinct, flat, forthright, indefinite, tasteless, frank, blunt, honest, slow, old-fashioned, benevolent, calm, undefined, kind, lazy, bland, unstylish.
  • splendid
    typical, shoddy, shameful.
  • superior
    meek, below.
  • tiptop
    awful, terrible, dreadful, horrible.
  • top
    lowest.
  • worthy
    fraudulent, disreputable, deceptive, unrespected, untrustworthy, dishonorable, valueless, dishonest, false.
  • Other antonyms:
    middling, atrocious, pathetic, lousy, wretched, substandard, low-grade, execrable.

Hyponym for First class:

• n.

  • artifact
    accommodation.
  • attribute
    superiority, high quality.