1 : full of trouble : stormy these troublous times. 2 : causing trouble : troublesome inflation is a troublous matter.

What does absolutely really mean?

without exception; completely; wholly; entirely: You are absolutely right. without doubt or reservation; positively; certainly: I'll absolutely support your candidacy. (of a transitive verb) without an object.

What is the conceivable meaning?

: capable of being conceived : imaginable every conceivable combination.