important matter (noun) concern: interest; anxiety
Sinonime: cold,
dead, dead to the world, dopey, drowsy, drugged, hebetudinous, inconscious, insensible,
lethargic,
out, out cold, out to lunch,
senseless,
sleepy,
sluggish, slumberous,
somnolent, soporose, stupefied,
stupid, stuporous,
torpid, vegged out
Antonime: alert,
awake,
conscious