Modifiers matching invalid:

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

Simple categories matching gangly:

• person,
• magician,
• child,
• invalid,
• friend,
• monk,
• clerk,
• student,
• teenager,