Answer:

inert

Answer	Crossword Clue
INERT	Like helium
INERT	Like a couch potato
INERT	Like krypton

INERT	Nonreactive
INERT	Languid
INERT	Motionless
INERT	Stagnant
INERT	Immobile
INERT	Like the elements on the far right of the periodic table
INERT	Like helium or argon
INERT	Like argon

INERT	Like argon or helium
INERT	Like some gases
INERT	Not exactly active
INERT	Powerless to move
INERT	Lifeless
INERT	Not apt to react
INERT	Sluggish
INERT	Immobilized

INERT	Lethargic
INERT	Like the noble gases
INERT	Like xenon
INERT	Unlikely to form compounds
INERT	Unreactive
INERT	Like group 18 elements
INERT	Like some gas elements
INERT	Like neon

INERT	Not moving
INERT	Nonreactive, as some gases
INERT	Lacking vigor
INERT	Like neon and helium
INERT	Unmoving
INERT	Less than slow
INERT	Listless
INERT	Still

INERT	At a standstill
INERT	Like radon
INERT	Like neon and xenon
INERT	Like a noble gas
INERT	Not at all active