| Deeply 1. (adv.) At or to a great depth; far below the surface; as, to sink deeply. 2. (adv.) Profoundly; thoroughly; not superficially; in a high degree; intensely; as, deeply skilled in ethics. 3. (adv.) Very; with a tendency to darkness of color. 4. (adv.) Gravely; with low or deep tone; as, a deeply toned instrument. 5. (adv.) With profound skill; with art or intricacy; as, a deeply laid plot or intrigue. Thesaurus Entries acutely, completely, deep, emotionally, entirely, extremely, gravely, greatly, heavily, intensely, irrevocably, keenly, passionately, powerfully, profoundly, seriously, severely, strongly, thoroughly, unreservedly, very much |