1) Above-board 2) Blunt 3) Candid 4) Direct 5) Direct and outspoken 6) Directly and without evasion 7) Frank 8) Free 9) Free-spoken 10) Going straight to the point 11) Guileless 12) Honest 13) Not roundabout 14) Open 15) Outspoken 16) Plainspoken 17) Point-blank 18) Truthful 19) Without subtlety or evasion Found on https://www.crosswordclues.com/clue/forthright
Forth'right` adverb [ Forth , adverb + right , adverb ] Straight forward; in a straight direction. [ Archaic] Sir P. Sidney. Found on http://www.encyclo.co.uk/webster/F/66
going straight to the point; frank; direct; outspoken: It's sometimes difficult to be forthright and not give offense. · proceeding in a straight course; direct; straightforward: a forthright glance. Found on https://www.infoplease.com/dictionary/forthright