kinda
Synonym discussion
Sense: adverb/1
Kinda, kind of, and sort of all sit on the informal side of the register spectrum and are largely interchangeable when you mean 'to some extent' in casual speech. Sort of has a slightly more hesitant or approximating tone than kind of — you might say 'sort of blue-green' when you are unsure of the colour. Somewhat is the formal counterpart and never appears in casual texting: 'The results were somewhat disappointing' would sound out of place as 'The results were kinda disappointing' in a business report. A little leans toward 'a small amount' whereas kinda and its synonyms convey vagueness or approximation more than smallness. For example, 'I'm a little tired' suggests a specific degree of tiredness, while 'I'm kinda tired' hedges the statement without giving a precise level.
Etymology
Kinda is a contracted spelling of 'kind of' that emerged in print during the early 1900s as writers tried to capture the way people naturally run the two words together in quick, casual speech. It follows the same pattern as other reduced forms such as 'gonna' (going to) and 'wanna' (want to), where the spoken reduction eventually gained a standard written representation.