Modifiers matching nerd:

• insightful,
• intelligent,
• anti-social,
• knowledgeable,
• nerdy,
• sensitive,
• resourceful,
• observant,
• youthful,
• educated,
• entertaining,
• brilliant,
• eager-to-impress,
• clever,
• geeky,
• obsessive,
• considerate,
• smart,
• affable,
• cruel,
• attention-seeking,
• pretentious,
• socially-awkward,
• polite,
• whiny,
• suave,
• sarcastic,
• judgmental,
• insecure,
• technically-brilliant,
• obese,
• sanctimonious,
• self-satisfied,
• insensitive,
• funny,
• obnoxious,
• egotistical,
• diligent,
• literate,
• hard-working,
• annoying,
• timid,
• urbane,
• smug,
• caring,
• know-it-all,
• bureaucratic,
• short,
• precocious,
• bumbling,
• zany,
• cultured,
• scientific,
• narcissistic,
• overweight,
• petulant,
• imperious,
• fat,
• friendly,
• witty,

Simple categories matching insecure:

• person,
• criminal,
• queen,
• son,
• child,
• musician,
• snob,
• fool,
• nerd,
• comedian,
• physicist,
• friend,
• transport,
• narcissist,
• teenager,
• humorist,
• clown,
• system,
• actor,
• tyrant,
• medium,
• student,
• psychopath,
• bully,
• dictator,
• composer,
• network,
• politician,
• singer,
• actress,
• psychiatrist,
• writer,
• thug,
• director,
• president,
• pianist,
• heroine,
• princess,
• father,
• duck,
• autocrat,