forbidding UK /fəˈbɪdɪŋ/US /fɚˈbɪdɪŋ/adjective 1noun 1forms 3 adjective1 •Appearing to be threatening, unfriendly or potentially unpleasant.What cause, cry’d he, can justify our flight, To tempt the dangers of forbidding night? — 1726 noun1 •The act by which something is forbidden; a prohibition.But all these poor forbiddings could not stay him — 1594 formsforbiddings · more forbidding · most forbidding