esp. in speech: Outspokenness. More fully, frankness of speech (in early use = ‘liberty of speech’).

Frankness, openness, familiarity (in conversation or social interaction); outspokenness; (occasionally) an instance of this.

Plainness of speech; freedom of utterance.

Freedom from dissimulation; honesty, straightforwardness, sincerity; honourable or fair dealing; freedom from reserve, openness, candour, frankness…

The quality of being unreserved; absence of or freedom from reserve, restraint, or inhibition.

Absence of or freedom from reserve; frankness, candour; uninhibitedness.

Freedom from reserve in one's statements; openness, frankness, ingenuousness, outspokenness.