pugnacious

As adjectives the difference between riotous and pugnacious

is that riotous is having the characteristics of a riot while pugnacious is naturally aggressive or hostile; combative; belligerent.

Pugnacious is a related term of litigious.

As adjectives the difference between pugnacious and litigious

is that pugnacious is naturally aggressive or hostile; combative; belligerent while litigious is of or relating to litigation.

As adjectives the difference between pungent and pugnacious

is that pungent is having a strong odor that stings the nose, said especially of acidic or spicy substances while pugnacious is naturally aggressive or hostile; combative; belligerent.

As adjectives the difference between polemical and pugnacious

is that polemical is of, or relating to argument or controversy; polemic or contentious while pugnacious is naturally aggressive or hostile; combative; belligerent.

As a noun polemical

is a diatribe or polemic.

As adjectives the difference between obstreperous and pugnacious

is that obstreperous is attended by, or making, a loud and tumultuous noise; boisterous while pugnacious is naturally aggressive or hostile; combative; belligerent.

As an adjective pugnacious

is naturally aggressive or hostile; combative; belligerent.

As a noun sangfroid is

composure, self-possession or imperturbability especially when in a dangerous situation.

Pugnacious is a synonym of quarrelsome.

As adjectives the difference between quarrelsome and pugnacious

is that quarrelsome is argumentative; belligerent; contentious; given to quarreling while pugnacious is naturally aggressive or hostile; combative; belligerent.

Pugnacious is a related term of dissentious.

As adjectives the difference between pugnacious and dissentious

is that pugnacious is naturally aggressive or hostile; combative; belligerent while dissentious is marked by dissensions; contentious.

As adjectives the difference between obnoxious and pugnacious

is that obnoxious is extremely unpleasant, offensive, very annoying, odious or contemptible while pugnacious is naturally aggressive or hostile; combative; belligerent.