adj. Inspiring love or affection, in a childlike way.
v. Present participle of endear.
the GNU version of the Collaborative International Dictionary of English
adj. Making dear or beloved; causing love.
The Century Dictionary and Cyclopedia
Having a tendency to make dear or beloved; awakening affection: as, endearing qualities.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adj. lovable especially in a childlike or naive way
Word Usage
"My main problem with "endearing" is that I only see it used by adults talking about children (the AHD usage example is "the endearing charm of a little child") and to use it to talk about children's books betrays the child audience."