1) Candid 2) Natural 3) Not by design or artifice 4) Not having studied 5) Not labored 6) Not premeditated or labored 7) Not studied 8) Unaffected 9) Uncontrived 10) Unforced and impromptu 1) Natural 2) Uncontrived 3) Uneducated 
• (a.) Not studied; not acquired by study; unlabored; natural. • (a.) Not spent in study. • (a.) Not skilled; unversed; -- followed by in.
[adj] - not by design or artifice 2. [adj] - lacking knowledge gained by study often in a particular field
uncontrived adjective not by design or artifice; unforced and impromptu; `an air of unstudied spontaneous utterance is apt to be painstakingly achieved`; `simple unstudied charm`
not studied; not premeditated or labored; natural; unaffected. · not having studied; not possessing knowledge in a specific field; unversed: He is unstudied in law.