Word: thankless
Part of speech: Adjective
Syllables: thank
less
Definition: ungrateful or unappreciative
Morphemes:
Affix: thank
Language: en
PoS: Verb
Meaning: To feel gratitude or appreciation toward.
Affix: -less
Language: en
PoS: Suffix
Meaning: Lacking (something); without (something). Added usually to a noun to form an adjective signifying a lack of that noun.