The antonyms for the phrase "giving satisfaction" are varied and include words like dissatisfying, disappointing, unfulfilling, discouraging, disheartening, and unsatisfactory. Dissatisfying means failing to meet expectations or needs, while disappointing refers to failing to meet hopes or expectations. Unfulfilling means not satisfying one's desires or needs, discouraging means causing loss of confidence and enthusiasm, disheartening means causing a loss of courage or hope, and unsatisfactory means falling short of expectations or requirements. Knowing the antonyms of the phrase "giving satisfaction" can help us identify situations or experiences that fail to satisfy us and work towards finding better alternatives.