English

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Etymology

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From boast +‎ -some.

Adjective

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boastsome (comparative more boastsome, superlative most boastsome)

  1. Indicative of boast or boasting; bragging; boastful.
    • 1822, William Cowper, The poems of William Cowper - Volume 1 - Page 74:
      Ye have much cause for envy — but not all. We boastsome rich ones, whom the Gospel sways, And one who wears a coronet and prays; [...]