As adjectives the difference between kissier and hissier
is that kissier is (kissy) while hissier is (hissy).
kissier
English
Adjective
(head)
(kissy) kissy
English
Adjective
(er)
Sentimentally (l).
That tends to kiss frequently.
Derived terms
* kissy-kissy
Noun
(kissies)
hissier
English
Adjective
(head)
(hissy) hissy
English
Adjective
(er)
Accompanied with hisses
Making a hissing sound
Childish or petulant (compare hissy fit)
Derived terms
* hissy fit
* tissy
Noun
(hissies)
(US) A tantrum, a fit