Word: thoughtlessly
Part of speech: Adverb
Syllables: thought
less
ly
Definition: Done without thinking
Morphemes:
Affix: thought
Language: en
PoS: Verb
Meaning: Simple past tense and past participle of think; ponder; reflect on, or reason about
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.
Affix: -ly
Language: en
PoS: Suffix
Meaning: Used to form adverbs from adjectives.