IPA: /ʌnˈhæpiəst/
KK: /ʌnˈhæpiɪst/
The state of being the most sad or discontented compared to others.
After losing the game, he felt like the unhappiest person in the world.
Comparative: more unhappy
Superlative: unhappiest
Unhappiest → It is formed from "un-" (meaning not) and "happy" (from Old English "hap", meaning luck or fortune) and "-est" (a superlative suffix indicating the highest degree). The word "unhappiest" means the state of being not happy to the greatest extent.
Think of 'not' ('un-') combined with 'luck' or 'fortune' ('hap') to remember that 'unhappiest' describes someone who is the most unfortunate or lacking in happiness.