'kind of' definitions:

Definition of 'kind of'

(from WordNet)
adverb
To some (great or small) extent; "it was rather cold"; "the party was rather nice"; "the knife is rather dull"; "I rather regret that I cannot attend"; "He's rather good at playing the cello"; "he is kind of shy" [syn: rather, kind of, kinda, sort of]

Synonyms of 'kind of'

From: Moby Thesaurus