- INERT
- Unreactive
- Like helium
- Like a couch potato
- Like krypton
- Nonreactive
- Languid
- Motionless
- Stagnant
- Immobile
- Not exactly bouncing off the walls
- Like the elements on the far right of the periodic table
- Like argon
- Like helium or argon
- Dead to the world
- Immobilized
- Like neon and xenon
- Like radon
- Likely to stay put
- More than lethargic
- Not doing anything
- Not moving
- Unable to move
- Unlikely to move
- Unlikely to react
- Non-reactive, like a gas
- Not moving at all
- Doing nothing
- Like argon or helium
- Like some gases
- Lifeless
- Not exactly active
- Powerless to move
- Not apt to react
- Sluggish
- Not active chemically
- Like a bump on a log
- Slothful
- Unmoving
- Lethargic
- Like the noble gases
- Like xenon
- Unlikely to form compounds
- Like group 18 elements
- Like some gas elements
- Like neon
- Averse to action
- Like any 2-Down, it was once thought
- Not apt to be combined
- Scholastic starter
- Like placebos, typically
- Not exactly acting with alacrity
- Unable to react, as helium
- Like helium or neon
- Nonreacting
- Chemically nonreactive
- Like helium and krypton
- Like neon or krypton
- Sluggish by nature
- Like neon or argon
- Like argon or krypton
- Hardly moving
- Like 64-Across
- Not reacting
- Periodic table adjective
- At a standstill
- Slow to act
- Chemically unreactive
- Nonreactive, chemically
- Like couch potatoes
- Not reactive, as some gases
- Adjective for argon or neon
- Like neon, chemically
- Not reactive
- Chemically comatose
- Gas type
- Unwilling to move
- Dormant
- Nonreactive, like some gases
- Still
- Comatose, chemically
- Like neon or helium
- Like krypton and argon
- Like Freon or neon
- Going nowhere
- Like a dead weight
- Like neon or radon
- Like helium, say
- Nonreactive, as some gases
- Lacking vigor
- Like neon and helium
- Less than slow
- Listless
- Like a noble gas
- Not at all active
- Slower than 43-Down
- Not showing much life
- Like xenon and krypton
- Like argon and krypton
- Like noble gases
- Not reactive, as gases
- Like radon, say
- Nonreactive, as gases
- Like krypton and xenon
- Chemically inactive
- Disinclined to form compounds
- With 79-Across, entry in the periodic table's last column
- Not active
- Like helium and neon
- Without energy
- Disinclined to move
- Hardly dynamic
- Like liquid nitrogen
- Unable to act
- Like neon and argon
- Stationary
- Extremely still
- Torpid
- Opposite of active
- Perfectly still
- Not going anywhere
- Well fixed
- Static
- Stock-still
- Unable to 34 Down
- Chemically "quiet"
- Phlegmatic
- Nonreactive, as neon
- Nonreactive, in chemistry
- Not stirring
- Totally lacking in pizzazz
- Adjective for helium.
- Indisposed to action.
- Nonreactive in the lab
- Nonreactive, as elements
- Noble, in a way
- Like cellulose
- Unlike a reactant
- Quiescent
- Apathetic.
- Supine.
- Moveless.
- Dull.
- Helium is an ___ gas.
- Without power to move or act.
- Habitually inactive or sluggish.
- Descriptive of neon.
- Neutral.
- Passive.
- Slow.
- Adjective for krypton.
- Inactive.
- Adjective for neon or argon.
- Dull: slow.
- Indolent.
- Like argon or neon.
- Without power to move.
- With few or no active properties.
- Very slow to move.
- Not chemically active.
- Leaden
- Like nitrogen.
- Like neon gas.
- Powerless
- Lacking motion
- Certain gases
- Word for krypton
- Type of gas
- Not mobile
- Kind of gas
- Exanimate
- Very sluggish
- Adjective for argon
- Adjective for neon
- Otiose
- Like 47 Across
- Without power to act
- Like neon or xenon
- Naturally sluggish
- Like helium, e.g.
- Just sitting
- Like 11-Down
- Not quick to react
- Comatose
- Like helium, chemically
- Like krypton or xenon
- Not merely sluggish
- Apt to stay put
- Sitting around
- Unlikely to give a strong reaction
- Unmotivated, and then some
- Hard to get a reaction out of
- Hard to combine, chemically
- ___ gas
- Like propellants in pesticides
- Unable to react
- Like atoms with full outer shells
- Like gases in the rightmost column of the periodic table
- Like atoms with complete valence shells
- Like xenon or neon
- Like the gases neon and argon, but not oxygen and hydrogen
- Not so moving?
- Unresponsive
- Nonreactive, as the noble gases
- Reluctant to join?
- Like xenon and helium
- Slow to react
- Like nitrogen gas, generally
- Dullish
- Unable to react chemically
- Like rare gases
- Like a non-reactive substance
- Lying about
- Not chemically reactive
- Nonreactive, like neon and argon
- Powerless to act
- Lacking energy
- Utterly lethargic
- Like dead weight
- Chemically nonreactive, as a gas
- Having limited ability to react
- Dead to the world, as a chemical
- Immobile, as a gas
- Inactive, chemically
- Immobilized, as a gas
- Inactive, as gases
- Like a sluggish gas
- Like gas that can't pass?
- Like krypton and some other gases
- Powerless to act, as a gas
- Like gas that just sits there
- Like low-energy gases
- Stagnant, gas-wise
- Like a nonreactive element
- Like helium but not hydrogen
- Heliumlike
- Lethargic, perhaps
- Out of it
- Totally unreactive
- Like a pocketful of krypton
- Physically inactive
- Like krypton or radon
- Like most elements ending in "-on"
- Like xenon or radon
- Nonreactive, as helium
- Showing little energy
- Unreactive, to a chemist
- Slow to move
- Like an unreactive gas
- Nonreactive, like helium
- Argon or neon
- Like some gaseous elements
- Like a sloth
- Hard to combine
- Krypton descriptor
- Like sulfur hexafluoride
- Hard to move
- Like 103-Down
- Just sitting there
- Like the elements He, Ne and Xe
- Like argon and neon
