What term denotes great depth of intellect, feeling, or meaning?

The term that denotes great depth of intellect, feeling, or meaning is indeed "profundity." This word captures the essence of something that reflects deep insight or significant emotional weight. It suggests more than just surface-level understanding; instead, it indicates a profound quality that resonates on various levels, whether in thought, feeling, or interpretation.

In contexts such as literature, philosophy, or discussions of human experience, profundity conveys a richness and complexity that invites deeper contemplation and analysis. It implies a level of thoughtfulness and sophistication that enhances the value of the subject being discussed, making it a fitting descriptor for works or ideas that challenge and engage the intellect or evoke strong emotions.

Other options like "pleat" pertain to a fold or crease, lacking any association with depth of meaning. "Presage" refers to forecasting or predicting future events, and "perturbation" relates to a state of disturbance or anxiety, both of which do not convey the same sense of intellectual or emotional depth as "profundity."