• efectless,
• effectles,
• zffectless,
• qffectless,
• adfectless,
• acfectless,
• avfectless,
• agfectless,
• atfectless,
• arfectless,
• afdectless,
• afcectless,
• afvectless,
• afgectless,
• aftectless,
• afrectless,
• affwctless,
• affsctless,
• affdctless,
• affrctless

• artless,
• Afflictless,
• Effectless,
• Achesless,
• Actless.

The adjective form of the word "affectless" is "affectless".

The plural form of "affectless" is "affectlesses." However, this is a relatively uncommon word, and using it in the plural form may sound awkward.

The singular form of the word "affectless" is "affectless". It is the same for both singular and plural usage.