hassle (n.)
- ado
- altercation
- anarchy
- apologetics
- apologia
- apology
- argument
- argumentation
- battle
- beef
- bicker
- bickering
- bother
- brawl
- broil
- brouhaha
- buffet
- bug
- casuistry
- cavil
- chaos
- clamor
- commotion
- confusion
- contention
- contest
- controversy
- defense
- disputation
- dispute
- disturbance
- dustup
- embroilment
- endeavor
- essay
- fight
- foul-up
- fracas
- free-for-all
- fuss
- hubbub
- license
- litigation
- logomachy
- melee
- miff
- misrule
- mix-up
- moot
- morass
- muddle
- nag
- polemic
- polemics
- pother
- quibble
- racket
- rampage
- rhubarb
- riot
- rough-and-tumble
- row
- ruckus
- ruction
- rumpus
- run-in
- scramble
- scrap
- scuffle
- set-to
- shindy
- snafu
- spar
- squabble
- stir
- striving
- struggle
- to-do
- trial
- trouble
- try
- tumult
- turmoil
- tussle
- undertaking
- uproar
- whirl
- wrangle
- wrangling
- wrestle
hassle (v.)
- ado
- agonize
- argue
- argufy
- battle
- beef
- bicker
- bother
- brawl
- broil
- buffet
- bug
- cavil
- clamor
- contend
- contest
- dispute
- endeavor
- essay
- fight
- fuss
- license
- miff
- moot
- muddle
- nag
- niggle
- pester
- pettifog
- plead
- polemicize
- polemize
- pother
- quibble
- racket
- rampage
- riot
- roughhouse
- row
- rumpus
- scramble
- scrap
- scuffle
- snafu
- spar
- squabble
- stir
- strive
- struggle
- trouble
- try
- tussle
- whirl
- wrangle
- wrestle