As a noun terms
is .
As an adjective clattiest is
(clatty).
terms
English
Noun
(head)
Statistics
*
----
clattiest
English
Adjective
(head)
(clatty) clatty
English
Adjective
(er)
Used to describe people, places, and objects that are a bit shabby, dirty, 70's, greasy.
Noun
(clatties)
A shabby, slovenly person.
References
* clatty'', ''The English Dialect of Donegal: A Glossary , by Michael Traynor, Royal Irish Academy: 1953, Page 53.