Expand, Build up
A synonym for temper is temperament.
A synonym for varied is diverse.
I don't think there is a synonym for adjoined it is an antonym.
A synonym of undeniable is nonviable.
A synonym for plausible is possible.
Develop
Probably
Grow, evolve, advance.
derive, rise, originate, develop
Grow, start, develop.
emerge, expand, develop, advance, open, grow, enlarge, disclose
amplify, clarify, develop, explain, illustrate
happen, start, begin, follow, result, develop, emerge, occur
enhance, develop, improve, boost, supplement, refine, heighten, augment
teach, school, train, develop, improve, inform, discipline, tutor
Grow the heck up
get thesaurus: obtain, acquire, dig up, get a hold, catch, develop, become, grow, progress, grasp, understand, comprehend, follow, perceive...