No. If you cut and paste between documents, styles with the same name will take on the formatting of the destination style when there is a conflict, but the incoming style could have an override or not be in the destination document.
If you are trying to turn off hyphenation for all text it can be done with a simple script.
Thank you SOooooo much; I really appreciate the concise response.
I will look for that script now !
If you are using OSX this AppleScript should work. Turns hyphenation off for all of the paragraph styles and the document's paragraphs:
tell application "Adobe InDesign CC 2014"
set pstyles to all paragraph styles of active document
repeat with i from 1 to number of items in pstyles
set hyphenation of item i of pstyles to false
set hyphenation of every paragraph of every story of active document to false
set hyphenation of every paragraph of every cell of every table of every story of active document to false
Does breaking a compound word on its hyphen count as a single "hyphenated word"?
Does breaking a word on a manually entered discretionary hyphen count?