- informal or natural; particularly caught off-guard or unprepared
- honestly straightforward and direct without book or secretiveness
- characterized by directness in way or message; without subtlety or evasion
- free of excessive bias; disposed to consider and judge according to truth and justice, or without partiality or bias; fair; simply; impartial; because, a candid opinion.
- Open; frank; ingenuous; outspoken.
1620s, "white," from Latin candidum "white; pure; genuine, honest, upright," from candere "to shine," from PIE root *kand- "to radiate, to shine" (see candle). In English, metaphoric expansion to "frank" very first recorded 1670s (compare French candide "open, honest, ingenuous, honest"). Of photography, 1929. Associated: Candidly; candidness.
Don't get alarmed but I've taken the liberty to be a tad candid with him.