1. In a trustful manner.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• trustfull,
• trutfully,
• tastfully,
• trutfull,
• trusfull,
• rrustfully,
• frustfully,
• grustfully,
• yrustfully,
• 6rustfully,
• 5rustfully,
• teustfully,
• tdustfully,
• trustfuly,
• trustfullly,
• trustfullyy,
• trutifully,
• tristfull,
• moustfully,
• thrutfully

• thrust fault,
• trust fund,
• trustfulness,
• trustingly,
• trustful,
• triostium.

The adjective form of the word "trustfully" is "trustful".

The plural form of the word "trustfully" remains the same, as it is an adverb and does not change when pluralizing nouns.

The singular form of the word "trustfully" is "trustfully".