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Syllabification: as·sid·u·ous
Pronunciation: /əˈsijo͞oəs

Definition of assiduous in English:


Showing great care and perseverance: she was assiduous in pointing out every feature
More example sentences
  • Yet the result of this assiduous attention to presentation was that the image became too self-conscious.
  • I accept that Larry could have been more assiduous in his search.
  • The manager has the right to expect that his workers will be careful and assiduous.


mid 16th century: from Latin assiduus, from assidere 'be engaged in doing' (see assess), + -ous.



Example sentences
  • There I was placed in the hands of some of the most diligent professionals, who attended to me assiduously, trying to save my life.
  • I have assiduously searched my posts for any reference to a husband which may have caused this confusion, and find none.
  • Therefore, we must work assiduously to challenge the dominant role of the corporation in our lives and in our politics.


Example sentences
  • On the contrary, these qualities are considered signs of assiduousness and punctiliousness.
  • But in one of the more heroic efforts in tennis history, he set about - with characteristic assiduousness and determination - trying to acquire a grass-court game in order to win it.
  • Apparently some famous violinist whose name escapes me wrote to his son (a violist): ‘You must practise with great assiduousness, since you do not wish to remain a violist for the whole of your life.’

Words that rhyme with assiduous


Definition of assiduous in:

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Word of the day apathetic
Pronunciation: apəˈθɛtɪk
showing or feeling no interest, enthusiasm, or concern