What is the opposite of unconscious?

The term "unconscious" refers to a state where a person is not aware of their surroundings, lacks responsiveness, or is in a lack of awareness. The opposite state of being unconscious is when a person is aware and alert to their environment, which is effectively described by the term "awake." Being awake implies that the individual is not only conscious but also actively engaged with their surroundings and capable of responding to stimuli.

The other choices refer to states of reduced awareness or responsiveness. Being asleep indicates a reduced state of awareness compared to being awake, where the brain is less engaged with external stimuli. Being comatose is a more severe non-responsive state where a person is unable to wake up or respond to their environment, thus standing in stark contrast to the concept of being awake. Inert also suggests a lack of movement or response but does not specifically denote awareness, making it less directly opposite to unconsciousness than the term "awake." Hence, "awake" is the most accurate antonym to the term "unconscious."