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Definition of Active
1. Noun. Chemical agent capable of activity.
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
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"
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
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"
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
Similar to: Activist, Activistic, Hands-on, Proactive
Derivative terms: Activeness, Activity
Antonyms: Passive
7. Adjective. Taking part in an activity. "The participating organizations"
8. Adjective. Characterized by energetic activity. "An active man is a man of action"
Attributes: Activeness, Activity
Similar to: About, Astir, Acrobatic, Athletic, Gymnastic, Agile, Nimble, Quick, Spry, Hot, Hyperactive, Overactive, On The Go, Sporty
Also: Lively, Energetic
Derivative terms: Activeness, Activity
Antonyms: Inactive
Similar to: About, Astir, Acrobatic, Athletic, Gymnastic, Agile, Nimble, Quick, Spry, Hot, Hyperactive, Overactive, On The Go, Sporty
Also: Lively, Energetic
Derivative terms: Activeness, Activity
Antonyms: Inactive
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
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
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
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.
13. Adjective. Expressing that the subject of the sentence has the semantic function of actor:. "Hemingway favors active constructions"
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.
15. Adjective. (of e.g. volcanos) capable of erupting.
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
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"
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)