Insidious is itself an adjective. Virus is a noun. Insidious may be used as an adjective to describe a sneaky virus.
Insidious is an adjective.
Facetious or insidious
Insidious is an adjective for proceeding in a gradual, subtle way, but with harmful effects; treacherous; crafty. Example sentence:The agency was investigating the insidious letters that were threatening an employee.
The word virus is a noun. The plural form is viruses.
Insidious is from the Latin word, "insidious." It means deceitful, and ambush. It can mean of something unpleasant or dangerous. It can also mean operating or proceeding in an inconspicuous or seemly harmless way but actually with grave effect.
Insidious is an adjective.
Insidious
The book's summary revealed the main character's insidious plot to obtain the large inheritance, illegally.
Facetious or insidious
By a virus adjective
The investigators uncovered an insidious scheme to rob people of their life savings. Another one is "There is a more insidious threats to Gulf stability."
Insidious is an adjective for proceeding in a gradual, subtle way, but with harmful effects; treacherous; crafty. Example sentence:The agency was investigating the insidious letters that were threatening an employee.
Insidious definition:appealing but imperceptibly harmful, seductivesentence: Liza's insidious blueberry muffins taste so good but makes you fell so sick later on!
Synonyms for the adjective treacherous are traitorous, treasonous, disloyal, faithless, unfaithful, false, insidious, or deceitful.
Synonyms for the adjective treacherous are traitorous, treasonous, disloyal, faithless, unfaithful, false, insidious, or deceitful.
By a virus adjective
Insidious