different between serious vs assiduous

English

Etymology

From Middle English seryows, from Old French serieux, from Medieval Latin s?ri?sus, an extension of Latin s?rius (“grave, earnest, serious”), from Proto-Indo-European *swer- (“heavy”). Cognate with German schwer (“heavy, difficult, severe”), Old English sw?r (“heavy, grave, grievous”). More at swear, sweer.

Pronunciation

• (General American) IPA^(key): /?s???.i.?s/, [?si??.i.?s]
• (Received Pronunciation) IPA^(key): /?s??.?i.?s/
• Rhymes: -???i?s
• Homophones: cereous, Sirius (one pronunciation)

Adjective

serious (comparative more serious or seriouser, superlative most serious or seriousest)

1. Without humor or expression of happiness; grave in manner or disposition

   It was a surprise to see the captain, who had always seemed so serious, laugh so heartily.

   Synonyms: earnest, solemn

2. Important; weighty; not insignificant

   This is a serious problem. We'll need our best experts.

3. Really intending what is said (or planned, etc); in earnest; not jocular or deceiving

   After all these years, we're finally getting serious attention.

   He says he wants to buy the team, but is he serious?

4. (of a relationship) Committed.

Synonyms

• See also Thesaurus:serious

Antonyms

• (important, weighty): trifling, unimportant
• (intending what is said): jesting

Derived terms

• srs (abbreviation)
• dead serious
• seriously
• seriousness
• serious-minded
• serious-mindedly
• serious-mindedness

Translations

Adverb

serious (not comparable)

1. (colloquial, dialect) In a serious manner; seriously.

Further reading

• serious in Webster’s Revised Unabridged Dictionary, G. & C. Merriam, 1913.
• serious in The Century Dictionary, New York, N.Y.: The Century Co., 1911.

English

Etymology

From Latin assiduus from assidere (“to sit down to”), from ad- (“to”) + sedere (“to sit”).

Cognate (via assidere) to assess.

Pronunciation

• (UK) IPA^(key): /??s?dju??s/
• (General American) IPA^(key): /??s?d?u??s/

Adjective

assiduous (comparative more assiduous, superlative most assiduous)

1. Hard-working, diligent or regular (in attendance or work); industrious.

   Synonyms: meticulous, diligent, sedulous; see also Thesaurus:industrious

   • 1917, P. G. Wodehouse, "Bill the Bloodhound" in The Man With Two Left Feet and Other Stories:

     A good deal of assiduous attention had enabled Henry to win this place in her affections.

   • 2009, Will Pavia, "Allen Klein, accountant turned manager of the Beatles, dies at 77," The Times (UK), 6 July:

     Klein rose to prominence in the 1960s by assiduous application of accounting methods to the music industry.

Usage notes

• Since the 18th century, this term has sometimes carried a connotation of servility.

Derived terms

• assiduously
• assiduousness

Related terms

Translations

References