Tough inside Synonyms

Definitions for Tough

(adjective) not easily chewed
(adjective) able to withstand hardship, strain, or exposure
(adjective) difficult to endure

Synonyms for phrase

heavy exclusive

TI abbreviation

TI is an abbreviation for Tough Inside

What does TI stand for?

TI stands for "Tough Inside"

Inside replaced

Definitions for Inside

(adjective) not known or meant to be known by the general populace
(adjective) situated farther in
(noun) an interior or internal part