1) All over the map 2) All over the place 3) Digressive 4) Directionless 5) Discursive 6) Disorderly 7) Disorganized 8) Excursive 9) Incoherent 10) Indirect 11) Lacking coherence 12) Lacking continuity 13) On an aimless course 14) Straying from the subject 1) Discursive 2) Disjointed 3) Excursive 4) Extensive 5) Feverish 6) Indecisive 7) Meandering 8) Straggly 9) Verbose 10) Wordy 
• (a.) Roving; wandering; discursive; as, a rambling fellow, talk, or building. • (p. pr. & vb. n.) of Ramble
Ram'bling (-blĭng) adjective Roving; wandering; discursive; as, a rambling fellow, talk, or building.