hardest

• (Received Pronunciation) enPR: härdʹĭst, IPA^(key): /ˈhɑːdɪst/
• (General American) enPR: härdʹĭst, IPA^(key): /ˈhɑɹdɪst/

• Audio (US):

  (file)

  • (weak vowel merger) IPA^(key): /ˈhɑɹdəst/

hardest

1. superlative form of hard: most hard. Most rigid or most difficult.

   Diamond is the hardest natural material.

   The hardest thing I ever did was run the 25th mile of a 26 mile long marathon.

• hardest working

• Deharts, dearths, hard-set, hatreds, heardst, hetdars, sharted, threads, trashed

hardest

1. indefinite singular superlative degree of hard