The word "free-spoken" means speaking one's thoughts candidly and openly. Antonyms for this word would be those that depict reservations and reticence in expression. Some of the antonyms for "free-spoken" can include words like guarded, hesitant, shy, secretive, reserved, circumspect, diffident, and taciturn. These words imply a sense of hesitation and reluctance when it comes to sharing one's thoughts or beliefs. Such traits are often seen in people who are introverted or reserved, or who lack confidence in their communication skills. Compared to "free-spoken," these antonyms suggest that an individual may hold back their opinions or views, suppressing their freedom of expression.