Lacking determination is a term used to describe someone who is unable to make decisions or stick to them. This can be due to a lack of confidence, fear of failure, or simply not having the willpower to see something through. Two words that can be used to describe this trait are 'IRRESOLUTE' and 'weakminded'. IRRESOLUTE means to be uncertain or wavering in opinion or purpose, while weakminded implies a lack of strength of character or will.