A substance that will not chemically reactive – inert growing mediums make it easy to control the chemistry of the nutrient solution.
Merriam-Webster Online Dictionary
inert (adjective)1.
lacking the power to move
2.
very slow to move or act - sluggish
3.
deficient in active properties , especially lacking a usual or anticipated chemical or biological action inactive
Merriam-Webster Online Thesaurus
inert (adjective)1.
not being in a state of use, activity, or employment
SYNONYMS:
dead, dormant, fallow, free, idle, inert, inoperative, latent, off, unused, vacantRELATED WORDS:
abeyant, arrested, interrupted, suspended; unoccupied; asleep, comatose, lifeless, moribund, quiescent, sleepy; inoperable, unusable, unworkable, useless; dull, slowNEAR ANTONYMS:
functional, operable, operational, workable; assiduous, industrious, sedulous; energetic, vigorous; feasible, practical, usable ( useable), useful, viable2.
slow to move or act
SYNONYMS:
dull, inert, lethargic, quiescent, sleepy, sluggish, torpidRELATED WORDS:
ambitionless, apathetic, indolent, languorous, lazy, lazyish, listless, shiftless, slack, slothful, sluggard, sluggardly; dormant, inanimate, motionless, resting, sedentary, static, still; dead; dopey ( dopy), drugged; asleep, drowsy, somnambulant; catatonic, comatoseNEAR ANTONYMS:
busy, engaged, occupied, working; animated, bouncing, dynamic, energetic, kinetic, lively, peppy, perky, spirited, sprightly, springy, vigorous, vital, vivacious, zippy; assiduous, diligent, hardworking, industrious, sedulousinactive, unreactive, stable, neutral, dormant
