onside

on·side  (nsd, ôn-)

adv. & adj. Sports

In such a position as to be able to play or receive a ball or puck legally.

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onside

Adjective, adv

Sport (of a player) in a legal position, for example, behind the ball or with a required number of opponents between oneself and the opposing team's goal line

Thesaurus

Adj.

1.

onside - not offside; being within the prescribed area of play athletics, sport - an active diversion requiring physical exertion and competition offside, offsides - illegally beyond a prescribed line or area or ahead of the ball or puck; "the touchdown was nullified because the left tackle was offside"