Welcome to the board. as·sid·u·ous /əˈs
Post# of 36537
as·sid·u·ous
/əˈsijo͞oəs/
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adjective
showing great care and perseverance.
"she was assiduous in pointing out every feature"
Similar:
diligent
careful
meticulous
thorough
sedulous
attentive
industrious