Modifiers matching invalid:

• insightful,
• crippled,
• brilliant,
• socially-unaware,
• optimistic,
• aloof,
• scientific,
• socially-awkward,
• innocent,
• rigid,
• socially-unintelligent,
• inspirational,
• stubborn,
• inspiring,
• weak,
• arrogant,
• kind-hearted,
• bumbling,
• gentle,
• gangly,
• good-hearted,
• sympathetic,

Simple categories matching crippled:

• person,
• royal,
• child,
• scientist,
• king,
• invalid,
• teacher,
• professor,