As a noun wrestle

is a wrestling bout.

As a verb wrestle

is to contend, with an opponent, by grappling and attempting to throw, immobilize or otherwise defeat him, depending on the specific rules of the contest.

As an adjective undefined is

lacking a definition or value.

As a noun motorsports

is .

As an adjective undefined is

lacking a definition or value.

As a noun vinegar

is (uncountable) a sour liquid formed by the fermentation of alcohol used as a condiment or preservative; a dilute solution of acetic acid.

As a verb vinegar

is to season with vinegar .

As an adjective undefined is

lacking a definition or value.

As a noun tailback

is a line of motor vehicles caught up in traffic congestion; a traffic jam.

As an adjective undefined is

lacking a definition or value.

As adjectives the difference between vacuous and undefined

is that vacuous is lacking meaningful content while undefined is lacking a definition or value.

As nouns the difference between sensitivity and susceptible

is that sensitivity is the quality of being sensitive while susceptible is (epidemiology) a person who is vulnerable to being infected by a certain disease.

As an adjective susceptible is

likely to be affected by something.

As a noun artform

is .

As an adjective undefined is

lacking a definition or value.

As adjectives the difference between ardent and undefined

is that ardent is full of ardor; fervent, passionate while undefined is lacking a definition or value.

As nouns the difference between dacoity and robber

is that dacoity is gang robbery carried out by dacoits while robber is a person who robs.

As a noun artistry

is significant artistic skill.

As an adjective undefined is

lacking a definition or value.