insidious

Preposition: in

• onset: The condition may be insidious in onset, caused by infection, infarction or insufficient insulin.

Modifies a noun

• onset: Some patients, however, present with a more insidious onset.
• threat: There is a more insidious threats to Gulf stability.
• plot: This is an insidious plot to stop you getting involved with the electric mania in which you wire up hundreds of lightbulbs.
• danger: A more insidious danger is horizontal gene transfer - the transfer of genetic material directly to unrelated species.
• influence: Too many scientists are becoming modern peddlers of snake oil under the insidious influence of the corporate culture.
• nature: The insidious nature of the EU is such that the majority of British citizens do not even recognize the threat.

Modifying Another Word

• particularly: I think it is a particularly insidious form of plagiarism.
• so: So insidious in people's minds, so full of surprises.
• very: I know we are working against an enemy who is very insidious in his methods.
• often: Its onset is often insidious, leading to delays in diagnosis.
• especially: Few people see any real difference between the various forms of PC pest, but Trojans are an especially insidious bunch.
• usually: The disease pattern is usually insidious with peripheral mono- or oligoarthritis.

Used with adjective complement

• become: Footnotes [ 1 ] Increasingly the spam is becoming more insidious.