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Inefficient vs Unusual - What's the difference?

inefficient | unusual |

As adjectives the difference between inefficient and unusual

is that inefficient is inefficient while unusual is unlike what is expected; differing in some way from the norm.

inefficient

Adjective

(en adjective)
  • Not efficient; not producing the effect intended or desired; inefficacious; as, inefficient means or measures.
  • Celery is an inefficient food.
  • Incapable of, or indisposed to, effective action; habitually slack or remiss; effecting little or nothing; as, inefficient workers; an inefficient administrator.
  • Jessica was terribly inefficient at cleaning, so her brother usually had to clean the whole room.

    Antonyms

    * efficient

    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