Pronunciation guide: IPA symbols, stress and word endings

θ	thin	ð	this	ʃ	she	ʒ	measure
tʃ	church	dʒ	judge	ŋ	sing	j	yes

p b t d k g f v s z h m n l r w sound as in ordinary English spelling.

ˈ main stress, before the stressed syllable: /ˈwɔːtə/ water · ˌ lighter (secondary) stress: /ˌʌndəˈstænd/ understand
ː a long vowel · (r) an r said only in accents that pronounce it (most American, Scottish, Irish)

-s / -es (plurals; he/she form of verbs): /s/ after voiceless sounds (cats), /z/ after voiced (dogs), /ɪz/ after s, z, sh, ch, j sounds (buses, watches). Spelling: -es after s, x, z, ch, sh; consonant + y → -ies (city → cities).
-ed (past): /t/ after voiceless sounds (walked), /d/ after voiced (played), /ɪd/ after t or d (wanted). Spelling: love → loved, stop → stopped, carry → carried.
-ing: make → making, run → running, see → seeing.
Irregular: go, went, gone · be, was, been · see, saw, seen · man → men · child → children · mouse → mice.
Older (King James) forms: -eth = -s (he loveth = he loves) · -est with “thou” (thou lovest) · spake = spoke.

fruitless

UK /ˈfɹuːtləs/ · US /ˈfɹutləs/ adjective

Forms fruitlesse

adjective Bearing no fruit; barren.
adjective (figuratively) Unproductive, useless. “The unskilled man’s attempt at fixing his car engine was fruitless.”
adjective (figuratively, archaic) Of a person: unable to have children; barren, infertile. “The fruitless woman desperately wanted to have children.”
adjective (rare) Of a diet, etc.: without fruit.

Synonyms

Inherited from Middle English fruytles; equivalent to fruit + -less. Compare Middle English withouten fruyt (“fruitless”, literally “without fruit”).

adjective Lacking, or not bearing, fruit; barren; destitute of offspring; as, a fruitless tree or shrub; a fruitless marriage. Shak.
adjective Productive of no advantage or good effect; vain; idle; useless; unprofitable; as, a fruitless attempt; a fruitless controversy.

Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “fruitless”, CC BY-SA 4.0. Details

Sanskrit dictionary entries whose meaning includes “fruitless” (best matches first).

विप्रनष्ट vi-pranaṣṭa lost, disappeared, vanished; vain, fruitless.
निष्फलय niṣ-phalaya niṣphalayati, etc., to make unfruitful, to render fruitless.
व्यर्थ vy-artha useless, unprofitable, fruitless, ineffectual, vain; unmeaning.
अकुध्र्यञ्च् a-kudhryañc for kudha for kuha = kutra ), Vedic going nowhere, coming to nothing; (Sāy.) fruitless, worthless.
विफल vi-phala fruitless, useless, ineffectual, unmeaning, vain, idle; ( ā ), f. a kind of plant or tree ( = ketakī ),
शुष्क śuṣka dried, dried up, dry; shriveled, withered, emaciated, shrunk up; groundless, causeless; unproductive, fruitl…
निष्फल niṣ-phala bearing no fruit, fruitless, unfruitful, barren, useless, unprofitable, vain; meaningless; unproductive, see…
निर्ग्रन्थक nir-granthaka unattended, unaccompanied; abandoned, deserted; fruitless; clever, expert, conversant; ( as ), m. a religiou…