First-class and Formidable

First-class adjective - Of the very best kind.

Formidable and first-class are semantically related In some cases you can use "Formidable" instead an adjective phrase "First-class".

Formidable adjective - Causing fear.

First-class and formidable are semantically related in efficient topic. Sometimes you can use "First-class" instead an adjective "Formidable".

Nearby Word: formidably