unreactive

Thân thiện

The noble gas helium is unreactive and does not form compounds.

Definition

1. Adjective:
   • Not tending to react to stimulation: Describes something that does not respond or change when acted upon by an external force or influence.
   • (Chemistry) Not reacting chemically: Describes a substance that does not undergo a chemical reaction when combined with other specific substances under given conditions.

Usage Examples

• General (Not tending to react):

  • The patient was unusually unreactive to the sensory tests.
  • The material is unreactive to changes in humidity.

• Chemistry (Not reacting chemically):

  • Nitrogen gas is relatively unreactive under standard conditions.
  • Gold is prized for jewelry because it is unreactive and does not tarnish.

Advanced Usage

• Scientific Context: Often used to describe inert gases, noble metals, or stable compounds.

  • Helium is an unreactive element, making it safe for use in balloons.

• Figurative Use: Can describe a person's demeanor or a system's lack of response.

  • His unreactive demeanor in the crisis was both calming and frustrating.

Variants and Related Words

• Unreactive is the standard adjective form.
• Unreactivity (noun, less common): The state or quality of being unreactive.
• Inert (adj): A close synonym, especially in chemistry, meaning lacking the ability or strength to move or react.
• Nonreactive (adj): Often used interchangeably with "unreactive," particularly in medical and chemical contexts (e.g., a nonreactive test result).

Synonyms

• Inert
• Nonreactive
• Stable (in a chemical context)
• Unresponsive

Antonyms

• Reactive
• Responsive
• Volatile (in a chemical/figurative context)
• Labile (in a chemical context)

Notes on Meaning

The meaning of "unreactive" is highly dependent on context: - In general language, it describes a lack of response to stimuli. - In chemistry, it is a technical term describing chemical stability and resistance to reaction. A substance can be unreactive with some chemicals but reactive with others.

Học thuật

Adjective

1. not tending to react to stimulation
2. (chemistry) not reacting chemically