SAPPIEST
SAPPY
bathetic, drippy, hokey, maudlin, mawkish, kitschy, mushy, schmaltzy, schmalzy, sentimental, sappy, soppy, soupy, slushy
(adjective) effusively or insincerely emotional; “a bathetic novel”; “maudlin expressions of sympathy”; “mushy effusiveness”; “a schmaltzy song”; “sentimental soap operas”; “slushy poetry”
sappy
(adjective) abounding in sap; “sappy maple trees”; “sappy kindling wood”
Source: WordNet® 3.1
Adjective
sappiest
superlative form of sappy: most sappy
Source: Wiktionary
SAPPY
Sap"py, a. [Compar. Sappier; superl. Sappiest.] Etym: [From 1st Sap.]
1. Abounding with sap; full of sap; juisy; succulent.
2. Hence, young, not firm; weak, feeble.
When he had passed this weak and sapy age. Hayward.
3. Weak in intellect. [Low]
4. (Bot.)
Definition: Abounding in sap; resembling, or consisting lagerly of,
sapwood.
Sap"py, a. [Written also sapy.] Etym: [Cf. L. sapere to taste.]
Definition: Musty; tainted. [Obs.]
Source: Webster’s Unabridged Dictionary 1913 Edition