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Meaning of unreactive
The primary meaning of the word "unreactive" is describing something or someone that does not react or respond to a stimulus or situation.
Etymology of unreactive
The word "unreactive" is derived from the prefix "un-" meaning "not" and the word "reactive" which comes from the Latin "reactus" meaning "acted upon" and the suffix "-ive" which forms an adjective
The term has been used in English since the mid-19th century to describe chemical substances that do not readily react with other substances
Synonyms
inert
inactive
passive
dormant
quiescent
stagnant
immobile
static
unresponsive
indifferent
apathetic
lethargic
sluggish
slow
unenthusiastic
halfhearted
lukewarm
uninspired
uninterested
dispassionate
phlegmatic
torpid
comatose
vegetative
moribund
lifeless
inanimate
nonreactive
nonresponsive
unemotional
impassive
stoic
calm
serene
tranquil
stable
constant
unchanged
unaffected
impervious
insensitive
numb
benumbed
anesthetized
paralyzed
frozen
rigid
inflexible
unyielding
obstinate
resistant
unreceptive
unperceptive
Definitions
- Not reacting or responding to a stimulus or situation
- * Chemically inactive or inert
- * Not showing or feeling much emotion or interest
Usage Examples
- The patient was unreactive to the medication, showing no signs of improvement
- * The unreactive metal did not corrode when exposed to air and water
- * She seemed unreactive to the news, as if she had expected it all along
Antonyms
reactive
active
responsive
sensitive
emotional
passionate
enthusiastic
energetic
dynamic
interactive
engaged
interested
involved
participatory
proactive
spontaneous
volatile
explosive
unstable
erratic
changeable
variable
receptive
perceptive
aware
alert
attentive
lively
animated
vivacious
zealous
fervent
ardent
impulsive
excitable
irritable
temperamental
moody
mercurial