(as) tough as old boots
UKvery strong, and not easily made weaker:
He might be in his eighties but he's tough as old boots, that man.
US also (as) tough as shoe leather informal Tough food is very difficult to cut or eat.
Thesaurus: synonyms and related words
Physically strong and powerful
- almighty
- billy-o
- brute
- burly
- elemental
- exquisite
- high-octane
- invincible
- invulnerable
- muscle-flexing
- omnipotent
- overpowering
- reckon
- stout
- sturdy
- superhuman
- to be reckoned with idiom
- tough
- toughie
- unabated
See more results »
You can also find related words, phrases, and synonyms in the topics:
Not pleasant to eat or drink