not designing; straightforward; honest; not crafty or underhanded
undesigning in American English
(ˌundɪˈzainɪŋ)
adjective
not characterized by underhand schemes or selfish motives; without an ulterior design
Word origin
[1665–75; un-1 + designing]This word is first recorded in the period 1665–75. Other words that entered Englishat around the same time include: diffraction, newsletter, recessive, regulation, wigun- is a prefix meaning “not,” freely used as an English formative, giving negative oropposite force in adjectives and their derivative adverbs and nouns (unfair; unfairly; unfairness; unfelt; unseen; unfitting; unformed; unheard-of; un-get-at-able), and less freely used in certain other nouns (unrest; unemployment)