passing

n.

[1]	pass , passing play , passing game
[2]	loss , departure , exit , expiration , going , release
[3]	passage
[4]	death , dying , demise , end , loss , expiry , expiration , dying out , extinction , disappearance , vanishment
[5]	passage
[6]	overtaking
[7]	pass , qualifying

adv.

[1]	extremely , exceedingly , super

adj.

[1]	disappearing , vanishing , ephemeral , brief , going , fading (away) , slipping away , short-lived , expiring , transient , transitory , temporary , momentary , fleeting , transitional , impermanent
[2]	hasty , superficial , cursory , casual , quick , fleeting , brief , summary , abrupt , dismissive , glancing
[3]	in passing , by the way , incidentally , by the by , parenthetically , en passant
[4]	ephemeral , short-lived , transient , transitory , fugacious
[5]	pass
[6]	casual , cursory , perfunctory