platitudes is a form of:

Complementary



adjective
1.
~ (to something) ដែលជួយប្រកបដោយបរិបូរណ៍, ដែលបន្ថែម, ដែលបំពេញឬបង្គ្រប់
verb
1.
(TRANSITIVE) បន្ថែម, បំពេញ, បង្គ្រប់
ENGLISH MEANING
noun
1.
One skilled in compliments.
adjective
1.
Serving to fill out or to complete; as, complementary numbers.