[1] : The Collaborative International Dictionary of English v.0.48

profundity \profun"dity\, n.; pl. -ties. l. profunditas:
   cf. f. profondite. see profound.
   the quality or state of being profound; depth of place,
   knowledge, feeling, etc. "the vast profundity obscure."
   --milton.
   1913 webster
see also:
-ties profound 

[2] : WordNet (r) 2.0

profundity
     n 1: wisdom that is recondite and abstruse and profound; "the
          anthropologist was impressed by the reconditeness of the
          native proverbs" syn: reconditeness, abstruseness,
          abstrusity, profoundness
     2: intellectual depth; penetrating knowledge; keen insight;
        etc; "the depth of my feeling"; "the profoundness of the
        silence" syn: profoundness ant: superficiality
     3: the intellectual ability to penetrate deeply into ideas
        syn: astuteness, profoundness, depth
     4: the quality of being physically deep; "the profundity of the
        mine was almost a mile" syn: deepness, profoundness
        ant: shallowness
see also:
reconditeness abstruseness abstrusity profoundness superficiality astuteness 
depth deepness shallowness 

[3] : Moby Thesaurus II by Grady Ward, 1.0

68 moby thesaurus words for "profundity":
   sophia, abstruseness, abyss, acumen, ampleness, astuteness,
   bigness, bottomlessness, broad-mindedness, broadness,
   capaciousness, complexity, complication, comprehensiveness,
   copiousness, crabbedness, crampedness, deep-downness,
   deep-rootedness, deep-seatedness, deepness, depth, difficulty,
   discernment, erudition, esoterica, expansiveness, extensiveness,
   extreme innerness, fathomlessness, generousness,
   good understanding, grandeur, grandiosity, grandness, greatness,
   hardness, incomprehensibility, indecipherability, inscrutability,
   interiority, intricacy, involvement, keenness, knottiness,
   knowledgeability, largeness, mellow wisdom, obscurity,
   plumblessness, profoundness, reconditeness, ripe wisdom, sagacity,
   sageness, sapience, scholarliness, scholarship,
   seasoned understanding, sharpness, sound understanding,
   spaciousness, subterraneity, subtlety, tallness, wideness, wisdom,
   wiseness

Profundity >> P Words
Profundity, definition of term: Profundity
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