adj.
- aware of and responding to one's surroundings.
-
(usu. conscious of)
having knowledge of something.
▸
[
in combination]
concerned about a matter:
security-conscious.
- deliberate and intentional:
a conscious effort.
▸(of the mind or a thought) directly perceptible and under one's control.
Derivative
Etymology
C16: from L. conscius ‘knowing with others or in oneself’ (from conscire ‘be privy to’) + -ous.