A thiazide-like diuretic is a sulfonamide diuretic that has similar physiological properties to a thiazide diuretic, but does not have the chemical properties of a thiazide, lacking the benzothiadiazine molecular structure.
Examples include metolazone.
Some, such as indapamide are considered thiazide-like diuretics, but do not necessarily have the same mechanism.
References
Thiazide-like diuretic Wikipedia(Text) CC BY-SA