Synonyms for 21st:

• adj.

  •all (adjective)
  • 21st.

• Other synonyms:

  •Other relevant words:
  • twenty-first,
  • ordinal number,
  • cosh,
  • blackmail,
  • ordinal,
  • jolly roger,
  • pirate flag,
  • 21,
  • sap,
  • vingt-et-un,
  • pressure,
  • no.,
  • blackjack oak,
  • black flag,
  • jack oak.
  •Other relevant words (noun):
  • twenty-one,
  • blackjack,
  • xxi.

Paraphrases for 21st:

• Equivalence

  • Adjective
    21th.

• Reverse Entailment

  • Adjective
    21st-century.

• Independent

  • Cardinal number
    21., 21.0.
  • Adjective
    20th, 21e, 31st, 19th, 11th.

• Other Related

  • Cardinal number
    21.
  • Adjective
    21.
  • Proper noun, singular
    21.
  • Noun, singular or mass
    21.

Antonyms for 21st:

• Other antonyms:

  • other_words
    cardinal, ordinal.