Definition of Active

1. Noun. Chemical agent capable of activity.

Exact synonyms: Active Agent
Generic synonyms: Chemical Agent

2. Adjective. Tending to become more severe or wider in scope. "Active tuberculosis"
Category relationships: Pathology
Similar to: Progressive
Derivative terms: Activeness, Activity
Antonyms: Inactive

3. Noun. The voice used to indicate that the grammatical subject of the verb is performing the action or causing the happening denoted by the verb. "`The boy threw the ball' uses the active voice"
Exact synonyms: Active Voice
Generic synonyms: Voice
Antonyms: Passive Voice

4. Adjective. Engaged in or ready for military or naval operations. "Review the fighting forces"
Exact synonyms: Combat-ready, Fighting
Category relationships: Armed Forces, Armed Services, Military, Military Machine, War Machine
Similar to: Operational
Derivative terms: Activeness, Activity

5. Noun. A person who is a participating member of an organization. "The club issues a list of members, both the actives and the retirees"
Generic synonyms: Individual, Mortal, Person, Somebody, Someone, Soul

6. Adjective. Disposed to take action or effectuate change. "He was active in drawing attention to their grievances"
Attributes: Activeness, Activity
Similar to: Activist, Activistic, Hands-on, Proactive
Derivative terms: Activeness, Activity
Antonyms: Passive

7. Adjective. Taking part in an activity. "The participating organizations"
Exact synonyms: Participating
Similar to: Involved
Derivative terms: Activeness, Activity

8. Adjective. Characterized by energetic activity. "An active man is a man of action"

9. Adjective. Exerting influence or producing a change or effect. "An active ingredient"
Similar to: Activated, Counteractive, Surface-active
Derivative terms: Activeness, Activity
Antonyms: Inactive

10. Adjective. Full of activity or engaged in continuous activity. "An active account"
Similar to: Brisk, Bustling, Busy, Going, Open, Springy
Derivative terms: Activeness, Activity
Antonyms: Inactive

11. Adjective. In operation. "An active tradition"
Exact synonyms: Alive
Similar to: Existent, Existing
Derivative terms: Activeness, Activity, Aliveness

12. Adjective. (of the sun) characterized by an increased occurrence of sunspots and flares and radio emissions.
Category relationships: Astronomy, Uranology
Derivative terms: Activeness, Activity
Antonyms: Quiet

13. Adjective. Expressing that the subject of the sentence has the semantic function of actor:. "Hemingway favors active constructions"
Category relationships: Grammar
Antonyms: Passive

14. Adjective. (used of verbs (e.g. 'to run') and participial adjectives (e.g. 'running' in 'running water')) expressing action rather than a state of being.
Exact synonyms: Dynamic
Category relationships: Grammar
Antonyms: Stative

15. Adjective. (of e.g. volcanos) capable of erupting.
Similar to: Alive, Live
Also: Live
Antonyms: Extinct

16. Adjective. (of e.g. volcanos) erupting or liable to erupt. "Active volcanos"
Category relationships: Vent, Volcano
Attributes: Action, Activeness, Activity
Similar to: Eruptive
Derivative terms: Activeness, Activity
Antonyms: Dormant

17. Adjective. Engaged in full-time work. "Though past retirement age he is still active in his profession"
Similar to: Activated
Derivative terms: Activeness, Activity
Antonyms: Inactive

Definition of Active

1. a. Having the power or quality of acting; causing change; communicating action or motion; acting; -- opposed to passive, that receives; as, certain active principles; the powers of the mind.

Definition of Active

1. a participating member of an organization [n -S]

Medical Definition of Active

1. Characterised by action, not passive, not expectant. (18 Nov 1997)

Lexicographical Neighbors of Active

activating
activating(a)
activating agent
activation
activation
activations
activation analysis
activation energy
activation energy
activation product
activator
activator
activators
activator appliances
active (current term)
active (current term)
actively
activeness
activenesses
actives
activewear
active acetate
active agent
active air defense
active aldehyde
active anaphylaxis
active application
active biomass
active birth
active carbon dioxide

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