different between poisonous vs mischievous

English

Etymology

From Middle English poisounous, poysonouse, equivalent to poison +? -ous.

Pronunciation

• IPA^(key): /?p??z?n?s/, /?p??zn?s/

Adjective

poisonous (comparative more poisonous, superlative most poisonous)

1. Containing sufficient poison to be dangerous to touch or ingest.

   Synonyms: poisoned, toxic, venomous, (dialectal or archaic) attery

   Antonyms: nonpoisonous, unpoisonous

2. (figuratively) Negative, harmful.

   Synonym: toxic

Usage notes

Some speakers make a distinction between poisonous (releasing toxins when eaten), and venomous (releasing toxins (known as venom in this case) by biting a target), especially in non-colloquial speech.

Derived terms

Translations

English

Alternative forms

• mischievious, mischevious (nonstandard forms)

Etymology

From Middle English myschevous, mischevous, from Anglo-Norman meschevous, from Old French meschever, from mes- (“mis-”) + chever (“come to an end”) (from chef (“head”)). Synchronically analyzable as mischief +? -ous.

Pronunciation

• IPA^(key): /?m?s.t???.v?s/, /?m?s.t???.v?s/
• (nonstandard) /m?s.?t??i?.vi.?s/ (often along with the nonstandard spelling misch(i)evious)
• (dated) /m?s.?t??i?.v?s/

Adjective

mischievous (comparative more mischievous, superlative most mischievous)

1. Causing mischief; injurious.
2. Troublesome, cheeky, badly behaved.

   Matthew had a twin brother called Edward, who was always mischievous and badly behaved.

Usage notes

The spelling "misch(i)evious" and similar ones can be found since the 16th century, so the corresponding pronunciation is at least as old. But despite being common in a wide range of social classes today, these spellings and the corresponding pronunciation are still considered nonstandard and often viewed as incorrect.

Synonyms

• (causing mischief): harmful, hurtful, detrimental, noxious, pernicious, destructive; see also Thesaurus:harmful
• (badly-behaved): badly-behaved, naughty

Derived terms

• mischievously
• mischievousness

Translations

Further reading

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

Anagrams

• mischevious