• eisiest,
• easiert,
• asist,
• easliest,
• earlest,
• wasist,
• erliest,
• egsist,
• asest,
• eaist,
• easiers,
• eazyest,
• eaisiest,
• exiest,
• nasiest,
• easeist,
• easiests,
• sessiest,
• eaisest,
• easieist

• east,
• cosiest,
• asset,
• nosiest,
• basest,
• edgiest,
• haziest,
• oasis,
• eased,
• queasiest,
• uneasiest,
• laziest,
• eeriest,
• exist,
• rosiest,
• messiest,
• busiest,
• resist,
• eases,
• Oases,
• earliest,
• iciest,
• wisest,
• assist,
• earnest.

The plural of the "easiest" can be the "easiest".

The singular of the "easiest" can be the "easy".