5HardWords Play today

Tier 5 of 5

How to spell conscientious

What it means

careful and thorough

How it sounds

/ˌkɑːnʃiˈenʃəs/

Why it catches people out

Conscience + tious, with ce becoming ti. Two i's, one either side of the nt.

The spellings people reach for

In a sentence

He was a conscientious reviewer.

First appeared in

Puzzle #5 — July 29, 2026