UNDERACTIVE Antonyms

• tending to become more severe or wider in scope

• disposed to take action or effectuate change

• characterized by energetic activity

• exerting influence or producing a change or effect

• full of activity or engaged in continuous activity

• (of the sun) characterized by an increased occurrence of sunspots and flares and radio emissions

• expressing that the subject of the sentence has the semantic function of actor:

• (used of verbs (e.g. `to run') and participial adjectives (e.g. `running' in `running water')) expressing action rather than a state of being

• (of e.g. volcanoes) capable of erupting

• (of e.g. volcanoes) erupting or liable to erupt

• engaged in full-time work

• chemical agent capable of activity

• the voice used to indicate that the grammatical subject of the verb is performing the action or causing the happening denoted by the verb

• a person who is a participating member of an organization

• engaged in or ready for military or naval operations

• taking part in an activity

• in operation

• having life or vigor or spirit

• made to appear to move as living creatures do

• full of energetic and noisy activity

• characterized by action or forcefulness or force of personality

• of or relating to dynamics

• (used of verbs (e.g. `to run') and participial adjectives (e.g. `running' in `running water')) expressing action rather than a state of being

• an efficient incentive

• possessing or exerting or displaying energy

• working hard to promote an enterprise

• more active than normal

• full of life and energy

• full of zest or vigor

• quick and energetic

• elastic; rebounds readily

• filled with events or activity

• full of spirit; full of life

• characterized by forceful and energetic action or activity

• strong and active physically or mentally

• vigorous and animated