alive

Concise Oxford English Dictionary © 2008 Oxford University Press:
alive/əˈlʌɪv/

▶adjective

• 1 living, not dead.

  ■ continuing in existence or use.

• 2 alert and active.

  ■ having interest and meaning.

  ■ (alive to) aware of and interested in.

• 3 (alive with) swarming or teeming with.

– phrases
alive and kicking informal prevalent and very active.
alive and well still existing or active.

– derivatives
aliveness noun.

– origin OE on līfe, lit. ‘in life’.