Dictionary and Thesaurus

Definition of Sideline

• (noun) an auxiliary activity
• (noun) an auxiliary line of merchandise
• (noun) a line that marks the side boundary of a playing field
• (verb) remove from the center of activity or attention; place into an inferior position; "The outspoken cabinet member was sidelined by the President"

Synonyms of Sideline

• Out Of Bounds
• Avocation
• By-Line
• Hobby
• Pursuit
• Spare-Time Activity

Antonyms of Sideline

Homophones of Sideline