thingamabob/ʹthing·əməbob/ noun

• self-critical
• self-criticism
• self-deception
• self-defeating
• self-defence
• self-denial
• self-deprecating
• self-depreciation
• self-destruct
• self-determination
• self-discipline
• self-doubt
• self-drive
• self-educated
• self-effacement
• self-employed
• self-esteem
• self-evident
• self-examination
• self-existent
• self-explanatory
• self-expression
• self-fertilization
• self-fulfilling
• self-fulfilment