profound
Cross references:
1. deep
1. pro.found \pr*-'fau.nd, pro--\ \-'fau.n-(d)le-\ \-'fau.n(d)-n*s\ aj [ME,
fr. MF profond deep, fr. L profundus, fr. pro- before +]fundus bottom -
more at PRO-, BOTTOM 1a: having intellectual depth and insight 1b:
difficult to fathom or understand 2a: extending far below the surface 2b:
coming from, reaching to, or situated at a depth : DEEP-SEATED {~ sigh}
3a: characterized by intensity of feeling or quality 3b: all encompassing
: COMPLETE {~ sleep} - pro.found.ly av
2. profound n : something that is very deep; specif : the deeps of the sea