different between undercover vs pernicious

English

Etymology

under +? cover

Adjective

undercover (comparative more undercover, superlative most undercover)

1. Performed or happening in secret.
2. Employed or engaged in spying or secret investigation.

Synonyms

• clandestine
• See also Thesaurus:covert

Related terms

• cloak-and-dagger

Translations

Noun

undercover (plural undercovers)

1. A person who works undercover.

Translations

Verb

undercover (third-person singular simple present undercovers, present participle undercovering, simple past and past participle undercovered)

1. To provide too little coverage.

Dutch

Etymology

Borrowed from English undercover.

Pronunciation

• IPA^(key): /??n.d?r?k?.v?r/
• Hyphenation: un?der?co?ver

Adjective

undercover (not comparable)

1. undercover

Inflection

Adverb

undercover

1. undercover (in a covert fashion, not using one's real identity)

English

Etymology

From Middle English, from Old French pernicios, from Latin pernici?sus (“destructive”), from pernici?s (“destruction”), from per (“through”) + nex (“slaughter, death”).

Pronunciation

• (Received Pronunciation) IPA^(key): /p??n???s/
• (General American) IPA^(key): /p??n???s/

• Rhymes: -???s

Adjective

pernicious (comparative more pernicious, superlative most pernicious)

1. Causing much harm in a subtle way.

   Synonym: deleterious
2. Causing death or injury; deadly.

   Synonym: attery

Derived terms

• perniciousness
• perniciously

Related terms

• pernicious anemia

Translations

Anagrams

• superionic