D defs.my
Entry 2 senses Webster, 1913

Superficial

/so͞opˌ-ẽrf-ĭsh'-əl/ · Su·per·fi·cial · IPA /ˌsu.pɚˈfɪʃ.əl/
01 a. Of or pertaining to the superficies, or surface; lying on the surface; shallow; not deep; as, a superficial color; a superficial covering; …
  1. 1.
    Of or pertaining to the superficies, or surface; lying on the surface; shallow; not deep; as, a superficial color; a superficial covering; superficial measure or contents; superficial tillage.
  2. 2.
    Reaching or comprehending only what is obvious or apparent; not deep or profound; shallow; -- said especially in respect to study, learning, and the like; as, a superficial scholar; superficial knowledge.
    “This superficial tale Is but a preface of her worthy praise.” Shak.
    “He is a presumptuous and superficial writer.” Burke.
    “That superficial judgment, which happens to be right without deserving to be so.” J. H. Newman.