Words to Describe acknowledgements

How acknowledgements often is described ("________ acknowledgements")

• polite
• gracious
• delayed
• negative
• devout
• grateful
• necessary
• photographic
• blank
• heartfelt
• explicit
• specific
• liberal
• severer
• duplicate
• formal
• warm
• additional
• end
• ill
• sincerest
• suitable
• appropriate
• respectful
• cordial
• usual
• contents
• preface
• due
• further
• trifling
• best
• copyright
• cumulative
• humble
• personal
• frequent
• positive
• affectionate
• occasional
• detailed
• hearty
• page
• summary
• proper
• warmest
• generous
• customary
• selective
• thankful
• special
• individual
• verbal
• implicit
• brief
• sincere