Modifiers matching invalid:

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

Simple categories matching gangly:

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