4 adjectives to describe suspiciousness

These may be briefly catalogued under the following heads: A passionate violence of temper (terribilità), expressing itself in hasty acts and words; extreme suspiciousness and irritability; solitary habits, amounting to misanthropy or churlishness; eccentricity and melancholy bordering on madness; personal timidity and avarice; a want of generosity in imparting knowledge, and an undue partiality for handsome persons of his own sex.

And do you not see how all this more than acquiescence of Lord Pharanx in the conduct of his son deprives that conduct of half its significance, its intrinsic suspiciousness?

Still, we must not take this for proved; one of the great artist's main defects was an irritable suspiciousness, which caused him often to exaggerate slights and to fancy insults.

If he had been more versed in the wiles of the world, less astonished at his aunt's strange compliance with his dearest wishes, he would have noticed a keen suspiciousness in the glance with which she continually regarded him.

4 adjectives to describe  suspiciousness