This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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adj. Deeply, often wistfully or dreamily thoughtful.

adj. Suggestive or expressive of melancholy thoughtfulness.

adj. Having the appearance of deep, often melancholic, thinking.

adj. Looking thoughtful, especially from sadness.

adj. Thoughtful, sober, or sad; employed in serious reflection; given to, or favorable to, earnest or melancholy musing.

adj. Expressing or suggesting thoughtfulness with sadness.

Engaged in serious thought or reflection; given to earnest musing: often implying some degree of anxiety, depression, or gloom; thoughtful and somewhat melancholy.

Expressing thoughtfulness with sadness; betokening or conducive to thoughtful or earnest musing.

Synonyms Meditative, reflective, sober.

adj. deeply or seriously thoughtful

adj. showing pensive sadness

"Also in this family of Latin verbs is pēnsāre, as in “to weigh with the mind,” “to think,” as captured in the English word pensive."

thoughtful    sad   

pensively    pensiveness   

say   

apprehensive    comprehensive    counteroffensive    defensive    expensive    extensive    hypertensive    inexpensive    inoffensive    intensive   

thoughtful    wistful    dreamy    meditative    dejected    tranquil    sad    moody    somber    listless