1) Complaining 2) Complaintive 3) Fretful 4) French word used in English 5) Full of complaints 6) Habitually complaining 7) Whiney 8) Whining 9) Whiny Found on https://www.crosswordclues.com/clue/querulous
• (v.) Given to quarreling; quarrelsome. • (v.) Expressing complaint; fretful; whining; as, a querulous tone of voice. • (v.) Apt to find fault; habitually complaining; disposed to murmur; as, a querulous man or people. Found on http://thinkexist.com/dictionary/meaning/querulous/
Quer'u·lous adjective [ Latin querulus and querulosus , from queri to complain. Confer Cry , v. , Quarrel a brawl, Quarrelous .] 1. Given to quarreling; quarrelsome. [ Obsolete] land. 2. Apt to find fault; h... Found on http://www.encyclo.co.uk/webster/Q/8
full of complaints; complaining. · characterized by or uttered in complaint; peevish: a querulous tone; constant querulous reminders of things to be done. Found on https://www.infoplease.com/dictionary/querulous