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Nontrivial vs Unusual - What's the difference?

nontrivial | unusual |

As adjectives the difference between nontrivial and unusual

is that nontrivial is not trivial while unusual is unlike what is expected; differing in some way from the norm.

nontrivial

English

Alternative forms

* non-trivial

Adjective

(wikipedia nontrivial) (en adjective)
  • Not trivial.
  • (mathematics) Having at least one non-zero variable.
  • (computing) Needing significant computing power to solve; intractable.
  • Derived terms

    * nontrivially

    unusual

    English

    Alternative forms

    * unusuall (obsolete)

    Adjective

    (en adjective)
  • Unlike what is expected; differing in some way from the norm.
  • *
  • , title=(The Celebrity), chapter=2 , passage=I had occasion […] to make a somewhat long business trip to Chicago, and on my return […] I found Farrar awaiting me in the railway station. He smiled his wonted fraction by way of greeting, […], and finally leading me to his buggy, turned and drove out of town. I was completely mystified at such an unusual proceeding.}}
  • Not usual.
  • Synonyms

    * (different from the expected) abnormal, rare, strange, weird, (stronger) extraordinary ** See also

    Antonyms

    * (different from the expected) normal, usual